product rule for exponents definition

Consider the example [latex]\dfrac{{y}^{9}}{{y}^{5}}[/latex]. Explain. One light-year measures \(9.46 10^{15}\) meters. You have likely seen or heard an example such as [latex]3^5[/latex] can be described as[latex]3[/latex] raised to the[latex]5[/latex]th power. Here are some math vocabulary words that will help you to understand this lesson better: Base = the number or variable that is being multiplied to itself. For any number x and any integers a and b , (xa)(xb)= xa+b ( x a) ( x b) = x a + b. In this video you will learn how to use the product rule for exponents and common mistakes to avoid when using this rule. Power of a Product Examples Lesson Summary Frequently Asked Questions How do you write the power of a product? For any real number \(a\) and positive numbers \(m\) and \(n\), the product rule for exponents is the following. Use the quotient rule to simplify each expression. \(- \displaystyle\frac { 27 a ^ { 3 } b ^ { 6 } } { 8 c ^ { 9 } }\), 43. The method depends on the equality between the bases or the exponents of a power. WebWhen using the product rule, different terms with the same bases are raised to exponents. The total land area is \(305\) square miles. This is equivalent to raising each of the original grouped factors to the fourth power and applying the power rule. For any real number a and any numbers m and n, the power rule for exponents is the following: ( a m) n = a m n. Idea: Given the expression. When using the power rule, a term in exponential notation is raised to a power. Be careful to distinguish between uses of the product rule and the power rule. In \(2008\) the population of New York City was estimated to be \(8.364\) million people. By what factor is the mass of the Sun greater than the mass of Earth? The quotient rule of exponents allows us to simplify an expression that divides two numbers with the same base but different exponents. So, [latex]\left(5^{2}\right)^{4}=5^{2\cdot4}=5^{8}[/latex](which equals 390,625 if you do the multiplication). Here we count twelve decimal places to the left of the decimal point to obtain the number \(1.075\). WebThe Product Rule for Exponents. \(1,075,000,000,000 = 1.075 \times 10 ^ { 12 }\). Calculate the population density of New York City. [latex]{x}^{2}\cdot {x}^{5}\cdot {x}^{3}=\left({x}^{2}\cdot {x}^{5}\right)\cdot {x}^{3}=\left({x}^{2+5}\right)\cdot {x}^{3}={x}^{7}\cdot {x}^{3}={x}^{7+3}={x}^{10}[/latex], [latex]{x}^{2}\cdot {x}^{5}\cdot {x}^{3}={x}^{2+5+3}={x}^{10}[/latex], [latex]\begin{align}\frac{y^{9}}{y^{5}} &=\frac{y\cdot y\cdot y\cdot y\cdot y\cdot y\cdot y}{y\cdot y\cdot y\cdot y\cdot y} \\[1mm] &=\frac{\cancel{y}\cdot\cancel{y}\cdot\cancel{y}\cdot\cancel{y}\cdot\cancel{y}\cdot y\cdot y\cdot y\cdot y}{\cancel{y}\cdot\cancel{y}\cdot\cancel{y}\cdot\cancel{y}\cdot\cancel{y}} \\[1mm] & =\frac{y\cdot y\cdot y\cdot y}{1} \\[1mm] & =y^{4}\\ \text{ }\end{align}[/latex], [latex]\dfrac{{a}^{m}}{{a}^{n}}={a}^{m-n}[/latex], [latex]\dfrac{{y}^{9}}{{y}^{5}}={y}^{9 - 5}={y}^{4}[/latex], [latex]\begin{align} {\left({x}^{2}\right)}^{3}& = \stackrel{{3\text{ factors}}}{{{\left({x}^{2}\right)\cdot \left({x}^{2}\right)\cdot \left({x}^{2}\right)}}} \\ & = \stackrel{{3\text{ factors}}}{\overbrace{{\left(\stackrel{{2\text{ factors}}}{{\overbrace{x\cdot x}}}\right)\cdot \left(\stackrel{{2\text{ factors}}}{{\overbrace{x\cdot x}}}\right)\cdot \left(\stackrel{{2\text{ factors}}}{{\overbrace{x\cdot x}}}\right)}}}\\ & = x\cdot x\cdot x\cdot x\cdot x\cdot x\hfill \\ & = {x}^{6} \end{align}[/latex], [latex]{\left({a}^{m}\right)}^{n}={a}^{m\cdot n}[/latex]. Created by Sal Khan. If the average song in the MP3 format consumes about \(4.5\) megabytes of storage, then how many songs will fit on a \(4\)-gigabyte memory card? There is nothing to add onto that (because there are no 's in the first term), so it stays . WebThe Product Rule for Exponents. Simplify: \(\left( - 4 x ^ { 2 } y \right) ^ { - 2 }\). WebThe Product Theorem for Exponents is a rule that governs how we multiply exponential terms with the same base. Expand each \(\begin{aligned} - 8 x ^ { 5 } y \cdot 3 x ^ { 7 } y ^ { 3 } & = - 8 \cdot 3 \cdot x ^ { 5 } \cdot x ^ { 7 } \cdot y ^ { 1 } \cdot y ^ { 3 } \quad \color{Cerulean} { Commutative\: property } \\ & = - 24 \cdot x ^ { 5 + 7 } \cdot y ^ { 1 + 3 } \quad \color{Cerulean}{ Power\: rule\: for\: exponents } \\ & = - 24 x ^ { 12 } y ^ { 4 } \end{aligned}\). To multiply exponential terms with the same base, add the exponents. Notice that we can convert \(5.63 \times 10 ^ { - 3 }\) back to decimal form, as a check, by moving the decimal three places to the left. Also, instead of qualifying variables as nonzero each time, we will simplify matters and assume from here on that all variables represent nonzero real numbers. How much will the phone be worth in \(1\) year? Caution! In the last few problems, we saw one way to multiply terms with exponents. Infringement Notice, it will make a good faith attempt to contact the party that made such content available by When multiplying variables with exponents, we must remember the Product Rule of Exponents: Step 1: Reorganize the terms so the terms are together: Step 3: Use the Product Rule of Exponents to combine and ,and then and: The Product of Powers Property states when we multiply two powers with the same base, we add the exponents. If the world population was estimated to be \(6.67\) billion people in \(2007\), then estimate the world ant population at that time. Simplify: \(\left( x ^ { 5 } \cdot x ^ { 4 } \cdot x \right) ^ { 2 }\). The product of powers property refers to the method of multiplying two values raised to an exponent. WebExplanation: When multiplying variables with exponents, we must remember the Product Rule of Exponents: Step 1: Reorganize the terms so the terms are together: Step 2:Multiply : Step 3:Use the Product Rule of Exponentsto combine and , and thenand : Report an Error. An expression is completely simplified if it does not contain any negative exponents. \(\frac { x ^ { - 3 } } { y ^ { - 4 } } = \frac { \frac { 1 } { x ^ { 3 } } } { \frac { 1 } { y ^ { 4 } } } = \frac { 1 } { x ^ { 3 } } \cdot \frac { y ^ { 4 } } { 1 } = \frac { y ^ { 4 } } { x ^ { 3 } }\), The previous example suggests a property of quotients with negative exponents109. Ren Descartes (\(1637\)) established the usage of exponential form: \(a^{2}, a^{3}\), and so on. When using the power rule, a term in exponential notation is raised to a power and typically contained within parentheses. We find that [latex]{2}^{3}[/latex] is 8, [latex]{2}^{4}[/latex] is 16, and [latex]{2}^{7}[/latex] is 128. Water weighs approximately \(18\) grams per mole. In other words, when multiplying two expressions with the same base we add the exponents. b. Yes. Suppose an exponential expression is raised to some power. In this case, you add the exponents. Caution! The product of powers property refers to the method of multiplying two values raised to an exponent. \(- \displaystyle \frac { 2 } { x ^ { 3 } }\), 61. Rewrite the entire quantity in the denominator with an exponent of \(2\) and then simplify further. WebRules of Exponents: Product Rule The word product means to multiply. \end{aligned}\), \(\begin{aligned} &(3ab^4 )^{2 } && \text{Given} \\ &= \dfrac{1 }{(3ab^4)^2 } &&\text{Negative exponent rule applied} \\ &= \dfrac{1 }{3^2 \cdot a^3 \cdot b^{4\cdot 2}}&&\text{Power of a product rule applied.} \( \displaystyle\frac { 216 y ^ { 3 } } { x ^ { 12 } z ^ { 21 } }\), 73. link to the specific question (not just the name of the question) that contains the content and a description of Do not simplify further. Simplifying expression using the power of a product rule for exponents. Solution: Treat the expression \((x + y)\) as the base. The power rule for a quotient allows us to apply that exponent to the numerator and denominator. Consider the product x3 x4. WebNerdstudy presents the Product Rule for Exponents! Power of a Product Examples Lesson Summary Frequently Asked Questions How do you write the power of a product? When raising powers to powers, multiply exponents: \(\left( x ^ { m } \right) ^ { n } = x ^ { m \cdot n }\). WebWhen two exponential numbers, each having the same base, are multiplied by each other, we use the product rule of exponents to evaluate the expression. Simplify the expression using the power of a product rule for exponents. Scientific notation is an alternative, compact representation of these numbers. When using the power rule, a term in exponential notation is raised to a power and typically contained within parentheses. At first, it may appear that we cannot simplify a product of three factors. We also acknowledge previous National Science Foundation support under grant numbers 1246120, 1525057, and 1413739. For any real number a and any numbers m and n, the power rule for exponents is the following: ( a m) n = a m n. Idea: Given the expression. Often we will need to perform operations when using numbers in scientific notation. WebThe product rule for exponents: For any number x and any integers a and b , \left (x^ {a}\right)\left (x^ {b}\right) = x^ {a+b}. Use the power rule for exponents. In the previous example, notice that we did not multiply the base \(10\) times itself. To simplify a power of a power, you multiply the exponents, keeping the base the same. To multiply exponential terms with the same base, add the exponents. where \(n\) is an integer and \(1 a < 10\).This form is particularly useful when the numbers are very large or very small. The positive integer exponent n indicates the number of times the base x is repeated as a factor. \(x ^ { 4 } \cdot x ^ { 6 } = x ^ { 4 + 6 } = x ^ { 10 } \color{Cerulean}{Product\:rule\:for\:exponents}\). Use the formula \(C = 2r\) to calculate the circumference of the orbit. The value in dollars of a new mobile phone can be estimated by using the formula \(V = 210(2t + 1)^{1}\), where \(t\) is the number of years after purchase. For any real number a and b and any number n, the power of a product rule for exponents is the following: ( a b) n = a n b n. Simplify: \(\left( \frac { - 4 a ^ { 2 } b } { c ^ { 4 } } \right) ^ { 3 }\). \(\begin{aligned} C & = 2 \pi r \\ & \approx 2 ( 3.14 ) \left( 2.46 \times 10 ^ { 20 } \right) \\ & = 15.4 \times 10 ^ { 20 } \\ & = 1.54 \times 10 ^ { 1 } \cdot 10 ^ { 20 } \\ & = 1.54 \times 10 ^ { 21 } \end{aligned}\). 110Real numbers expressed the form \(a 10^{n}\), where \(n\) is an integer and \(1 a < 10\). With the help of the community we can continue to In general, this describes the product rule for exponents103. The distance from the center of our galaxy to the Sun is approximately \(26,000\) light years. Do not simplify further. In this case, you add the exponents. Remember, this is all being multiplied together, so the final answer is, "When you MULTIPLY terms together, simplify by ADDING the exponents of each variable.". We will begin by raising powers to powers. We also acknowledge previous National Science Foundation support under grant numbers 1246120, 1525057, and 1413739. If one mole is about \(6 \times 10^{23}\) molecules, then approximate the weight of each molecule of water. Here's what that looks like in this case: Then ADD the exponents of the variables to simplify. the Expressions with negative exponents in the denominator can be rewritten as expressions with positive exponents in the numerator: \(\frac { 1 } { x ^ { - m } } = x ^ { m }\). Carnegie Mellon University, Doctor of P Track your scores, create tests, and take your learning to the next level! \( \displaystyle\frac { 16 x ^ { 4 } y ^ { 16 } } { z ^ { 12 } }\), 45. In this case, you multiply the exponents. Any nonzero quantity raised to the 0 power is defined to be equal to \(1: x^{0} = 1\). According to the formula, will the phone ever be worthless? Twenty-five divided by twenty-five is clearly equal to one, and when the quotient rule for exponents is applied, we see that a zero exponent results. In this case, you add the exponents. Wed love your input. For any real number a and positive numbers m and n, the product rule for exponents is the following. WebUse the product rule for exponents. Both terms have the same base, x, but they are raised to different exponents. ), 41. In this case, you multiply the exponents. Your name, address, telephone number and email address; and For example, 54 = 5 5 5 5. Here we count six decimal places to the right to obtain \(3.045\). How much will the phone be worth in \(100\) years? a m a n = a m + n. Note: Bases must be the same to use the product rule. The base is the number to the left in an exponential term. a m a n = a m + n. Note: Bases must be the same to use the product rule. This leads to another rule for exponentsthe Power Rule for Exponents. Sometimes negative exponents appear in the denominator. It is the fourth power of[latex]5[/latex] to the second power. When using the product rule, different terms with the same bases are raised to exponents. which specific portion of the question an image, a link, the text, etc your complaint refers to; So we ADD and have . Definition: The Power Rule For Exponents. Real numbers expressed using scientific notation110 have the form. Using the quotient rule for exponents, we can define what it means to have zero as an exponent. Add exponents of common bases and make the result of the sum the new exponent. In the example, \(2x^{0}\), the base is \(x\), not \(2x\). Scientific notation is particularly useful when working with numbers that are very large or very small. The commutative property of multiplication allows us to use the product rule for exponents to simplify factors of an algebraic expression. This page titled 5.7: The power of a product rule for exponents is shared under a CC BY-SA 4.0 license and was authored, remixed, and/or curated by Victoria Dominguez, Cristian Martinez, & Sanaa Saykali (ASCCC Open Educational Resources Initiative) . WebUse the product rule for exponents. We also have a total of 6 's and 1 all being multipled together. 103\(x ^ { m } \cdot x ^ { n } = x ^ { m + n }\); the product of two expressions with the same base can be simplified by adding the exponents. Use numbers to show that \(( x + y ) ^ { n } \neq x ^ { n } + y ^ { n }\). Both terms have the same base, x, but they are raised to different exponents. For any real number a and b and any number n, the power of a product rule for exponents is the following: \(\begin{aligned} &(a \cdot b) 3&& \text{Given} \\ &a \cdot b \cdot a \cdot b \cdot a \cdot b &&\text{Expand using exponent 3} \\ &a \cdot a \cdot a \cdot b \cdot b \cdot b &&\text{Reorder product using the commutative property.} \(\begin{aligned} \frac { 33 x ^ { 7 } y ^ { 5 } ( x - y ) ^ { 10 } } { 11 x ^ { 6 } y ( x - y ) ^ { 3 } } & = \frac { 33 } { 11 } \quad x ^ { 7 - 6 } \cdot y ^ { 5 - 1 } \cdot ( x - y ) ^ { 10 - 3 } \\ & = 3 x ^ { 1 } y ^ { 4 } ( x - y ) ^ { 7 } \end{aligned}\). For any real number [latex]a[/latex] and natural numbers [latex]m[/latex] and [latex]n[/latex], such that [latex]m>n[/latex], the quotient rule of exponents states that. \(0.000003045 = 3.045 \times 10 ^ { - 6 }\). means of the most recent email address, if any, provided by such party to Varsity Tutors. By what factor is the radius of the Sun larger than the radius of the Earth? The product of powers property refers to the method of multiplying two values raised to an exponent. \( \displaystyle\frac { 10 y ^ { 2 } } { x ^ { 3 } }\), 63. Consider the product x3 x4. \(\begin{aligned} - 2 x ^ { 0 } & = - 2 \cdot x ^ { 0 } \\ & = - 2 \cdot 1 \\ & = - 2 \end{aligned}\), \(\color{Cerulean}{\frac { 1 } { 2 ^ { 3 } }}\color{Black}{ = \frac { 2 ^ { 0 } } { 2 ^ { 3 } } = 2 ^ { 0 - 3 } =}\color{Cerulean}{ 2 ^ { - 3 }}\). We can use the product rule of exponents to simplify expressions that are a product of two numbers or expressions with the same base but different exponents. WebThe Product Rule for Exponents. Exponent Product Rule Definition & Examples Explanations (3) Alex Federspiel Video 9 (Video) Product Rule for Exponents by mathman1024 \(\left( x ^ { 2 } y ^ { 3 } \right) ^ { 4 } = \left( x ^ { 2 } \right) ^ { 4 } \left( y ^ { 3 } \right) ^ { 4 } = x ^ { 8 } y ^ { 12 }\), In general, this describes the use of the power rule for a product as well as the power rule for exponents. In other words, when raising an exponential expression to a power, we write the result with the common base and the product of the exponents. The method depends on the equality between the bases or the exponents of a power. WebThe product rule for exponents: For any number x and any integers a and b , \left (x^ {a}\right)\left (x^ {b}\right) = x^ {a+b}. The product rule of exponents helps us remember what we do when two numbers with exponents are multiplied together. Legal. WebThe Product Theorem for Exponents is a rule that governs how we multiply exponential terms with the same base. \(\begin{aligned} \left( x ^ { 5 } \cdot x ^ { 4 } \cdot x \right) ^ { 2 } & = \left( x ^ { 5 + 4 + 1 } \right) ^ { 2 } \\ & = \left( x ^ { 10 } \right) ^ { 2 } \\ & = x ^ { 10 \cdot 2 } \\ & = x ^ { 20 } \end{aligned}\). Simplify: \(\frac { x ^ { - 3 } } { y ^ { - 4 } }\). Sort by: Top Voted Questions Tips & Thanks Charles Leonard Lewis IV 10 years ago Table of Contents: Exponent Definition; Laws of Exponents. Product, Quotient, and Power Rule for Exponents. Simplify: \(\left( \frac { 2 x ^ { - 2 } y ^ { 3 } } { z } \right) ^ { - 4 }\). misrepresent that a product or activity is infringing your copyrights. Review the definition of negative exponents and zero as an exponent. Definition: The Product Rule for Exponents. In the second term the exponent is 1. The base is the number to the left in an exponential term. \( \displaystyle\frac { 3 y ^ { 2 } } { x ^ { 2 } z }\), 65. In summary, the rules of exponents streamline the process of working with algebraic expressions and will be used extensively as we move through our study of algebra. WebProduct rule AP.CALC: FUN3 (EU) , FUN3.B (LO) , FUN3.B.1 (EK) Google Classroom About Transcript Introduction to the product rule, which tells us how to take the derivative of a product of functions. Legal. The circumference of the Suns orbit is approximately \(1.54 10^{21}\) meters. Product rule for exponents: \(x ^ { m } \cdot x ^ { n } = x ^ { m + n }\) Quotient rule for exponents: \(\frac { x ^ { m } } { x ^ { n } } = x ^ { m - n }\) Power rule for exponents: \(\left( x ^ { m } \right) ^ { n } = x ^ { m \cdot n }\) Power rule for a product: 105 \(( x y ) ^ { n } = x ^ { n } y ^ { n }\) Power rule for a quotient: 106 information described below to the designated agent listed below. 101 S. Hanley Rd, Suite 300 The positive integer exponent \(n\) indicates the number of times the base \(x\) is repeated as a factor. 106\(( x y ) ^ { n } = x ^ { n } y ^ { n }\) ; if a quotient is raised to a power, then apply that power to the numerator and the denominator. 108\(x^{n} = \frac{1}{x^{n}}\), given any integer \(n\), where \(x\) is nonzero. Divide: \(\left( 3.24 \times 10 ^ { 8 } \right) \div \left( 9.0 \times 10 ^ { - 3 } \right)\). For any positive number x and integers a and b: [latex]\left(x^{a}\right)^{b}=x^{a\cdot{b}}[/latex]. It is important to note that \(0^{0}\) is indeterminate. Exponent Product Rule Definition & Examples Explanations (3) Alex Federspiel Video 9 (Video) Product Rule for Exponents by mathman1024 (Assume all variables represent nonzero numbers. In the following examples assume all variables are nonzero. When multiplying two quantities with the same base, add exponents: \(x ^ { m } \cdot x ^ { n } = x ^ { m + n }\). In this video you will learn how to use the product rule for exponents and common mistakes to avoid when using this rule. Use the power rule to simplify each expression. Write each of the following products with a single base. Then ADD the exponents of the variables to simplify. \( \displaystyle\frac { a ^ { 24 } b ^ { 4 } } { 81 c ^ { 20 } }\). Use the power rule for exponents. In the second term the exponent is 2. The LibreTexts libraries arePowered by NICE CXone Expertand are supported by the Department of Education Open Textbook Pilot Project, the UC Davis Office of the Provost, the UC Davis Library, the California State University Affordable Learning Solutions Program, and Merlot. Remember, all these parts are being multiplied together, so the final answer is. The Sun moves around the center of the galaxy in a nearly circular orbit. The quotient rule for exponents: For any non-zero number x and any integers a and b: \displaystyle \frac { { {x}^ {a}}} { { {x}^ {b}}}= { {x}^ {a-b}} The power rule for exponents: We also acknowledge previous National Science Foundation support under grant numbers 1246120, 1525057, and 1413739. WebThe Product Theorem for Exponents is a rule that governs how we multiply exponential terms with the same base. For any real number a and b and any number n, the power of a product rule for exponents is the following: ( a b) n = a n b n. When using the power rule, a term in exponential notation is raised to a power and typically contained within parentheses. \\ &\dfrac{1 }{9a^3b^8 } &&\text{Simplify by multiplying as needed.} Table of Contents: Exponent Definition; Laws of Exponents. ChillingEffects.org. Simplify: \(\frac { - 5 x ^ { - 3 } y ^ { 3 } } { z ^ { - 4 } }\). 105\(( x y ) ^ { n } = x ^ { n } y ^ { n }\) ; if a product is raised to a power, then apply that power to each factor in the product. One light year, \(9.461 \times 10^{15}\) meters, is the distance that light travels in a vacuum in one year. The radius \(r\) of this very large circle is approximately \(2.46 10^{20}\) meters. This is because the coefficient 5.63 is between \(1\) and \(10\) as required by the definition. WebIn this article, we are going to discuss the six important laws of exponents with many solved examples. Consider the following calculation: \(\color{Cerulean}{1}\color{Black}{ = \frac { 25 } { 25 } = \frac { 5 ^ { 2 } } { 5 ^ { 2 } } = 5 ^ { 2 - 2 } =}\color{Cerulean}{ 5 ^ { 0 }}\). \\ &a^3b^3 && \text{Simplify to single base.} as If the base is negative, then the result is still positive one. Accessibility StatementFor more information contact us [email protected]. In this example, notice that we could obtain the same result by adding the exponents. Use the power rule to simplify each expression. Divide: \(\left( 3.15 \times 10 ^ { - 5 } \right) \div \left( 12 \times 10 ^ { - 13 } \right)\). The product [latex]8\cdot 16[/latex] equals 128, so the relationship is true. Recall that if a factor is repeated multiple times, then the product can be written in exponential form \(x^{n}\). For any number x and any integers a and b , (xa)(xb)= xa+b ( x a) ( x b) = x a + b. CC licensed content, Specific attribution, http://cnx.org/contents/[email protected], http://cnx.org/contents/[email protected]:1/Preface, [latex]\left(3a\right)^{7}\cdot\left(3a\right)^{10} [/latex], [latex]\left(\left(3a\right)^{7}\right)^{10} [/latex], [latex]\left(3a\right)^{7\cdot10} [/latex], [latex]\left(-3\right)^{5}\cdot \left(-3\right)[/latex], [latex]{x}^{2}\cdot {x}^{5}\cdot {x}^{3}[/latex], [latex]{t}^{5}\cdot {t}^{3}={t}^{5+3}={t}^{8}[/latex], [latex]{\left(-3\right)}^{5}\cdot \left(-3\right)={\left(-3\right)}^{5}\cdot {\left(-3\right)}^{1}={\left(-3\right)}^{5+1}={\left(-3\right)}^{6}[/latex], [latex]{\left(\dfrac{2}{y}\right)}^{4}\cdot \left(\dfrac{2}{y}\right)[/latex], [latex]{t}^{3}\cdot {t}^{6}\cdot {t}^{5}[/latex], [latex]{\left(\dfrac{2}{y}\right)}^{5}[/latex], [latex]\dfrac{{\left(-2\right)}^{14}}{{\left(-2\right)}^{9}}[/latex], [latex]\dfrac{{t}^{23}}{{t}^{15}}[/latex], [latex]\dfrac{{\left(z\sqrt{2}\right)}^{5}}{z\sqrt{2}}[/latex], [latex]\dfrac{{\left(-2\right)}^{14}}{{\left(-2\right)}^{9}}={\left(-2\right)}^{14 - 9}={\left(-2\right)}^{5}[/latex], [latex]\dfrac{{t}^{23}}{{t}^{15}}={t}^{23 - 15}={t}^{8}[/latex], [latex]\dfrac{{\left(z\sqrt{2}\right)}^{5}}{z\sqrt{2}}={\left(z\sqrt{2}\right)}^{5 - 1}={\left(z\sqrt{2}\right)}^{4}[/latex], [latex]\dfrac{{s}^{75}}{{s}^{68}}[/latex], [latex]\dfrac{{\left(-3\right)}^{6}}{-3}[/latex], [latex]\dfrac{{\left(e{f}^{2}\right)}^{5}}{{\left(e{f}^{2}\right)}^{3}}[/latex], [latex]{\left(e{f}^{2}\right)}^{2}[/latex], [latex]{\left({x}^{2}\right)}^{7}[/latex], [latex]{\left({\left(2t\right)}^{5}\right)}^{3}[/latex], [latex]{\left({\left(-3\right)}^{5}\right)}^{11}[/latex], [latex]{\left({x}^{2}\right)}^{7}={x}^{2\cdot 7}={x}^{14}[/latex], [latex]{\left({\left(2t\right)}^{5}\right)}^{3}={\left(2t\right)}^{5\cdot 3}={\left(2t\right)}^{15}[/latex], [latex]{\left({\left(-3\right)}^{5}\right)}^{11}={\left(-3\right)}^{5\cdot 11}={\left(-3\right)}^{55}[/latex], [latex]{\left({\left(3y\right)}^{8}\right)}^{3}[/latex], [latex]{\left({t}^{5}\right)}^{7}[/latex], [latex]{\left({\left(-g\right)}^{4}\right)}^{4}[/latex]. The speed of light is approximately \(1.9 10^{5}\) miles per second. \[ x^3\times x^4=x^{3+4}=x^7 \nonumber\] Now consider an example with real 107\(x^{0} = 1\); any nonzero base raised to the \(0\) power is defined to be \(1\). Both terms have the same base, x, but they are raised to different exponents. Remember that when multiplying variables with exponents, the following property holds true: With this knowledge, we can solve the problem: If you've found an issue with this question, please let us know. When using the product rule, different terms with the same bases are raised to exponents. a. Consider the product of \(x^{4}\) and \(x^{6}\). WebWhen two exponential numbers, each having the same base, are multiplied by each other, we use the product rule of exponents to evaluate the expression. on or linked-to by the Website infringes your copyright, you should consider first contacting an attorney. To do this, we use the power rule of exponents. Thus, if you are not sure content located WebThe product rule lets us multiply exponents more easily. For example, \(\begin{aligned} 9,460,000,000,000,000 m & = 9.46 \times 10 ^ { 15 } \mathrm { m } \quad\color{Cerulean}{One \:light \:year} \\ 0.000000000025 \mathrm { m } & = 2.5 \times 10 ^ { - 11 } \mathrm { m } \quad\color{Cerulean}{Raduis \:of \: a\: light\: year} \end{aligned}\). Here the base is 5 and the exponent is 4. Using the Power Rule to Simplify Expressions With Exponents. Both terms have the same base, x, but they are raised to different exponents. Explain to a beginning algebra student why \(2 ^ { 2 } \cdot 2 ^ { 3 } \neq 4 ^ { 5 }\). Write each of the following products with a single base. The product rule of exponents helps us remember what we do when two numbers with exponents are multiplied together. Definition: The Power Rule For Exponents. Calculus for Business and Social Sciences Corequisite Workbook (Dominguez, Martinez, and Saykali), { "5.01:_Definition_of_a" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "5.02:_The_Product_Rule_for_Exponents" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "5.03:_The_Quotient_Rule_of_Exponents" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "5.04:_Zero_Exponent_Rule" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "5.05:_The_Negative_Exponent_Rule" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "5.06:_Power_Rule_For_Exponents" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "5.07:_The_power_of_a_product_rule_for_exponents" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "5.08:_Power_of_a_quotient_rule_for_exponents" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "5.09:_Rational_Exponents" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()" }, { "00:_Front_Matter" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "01:_The_Real_Numbers_and_the_Number_Line" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "02:_Cartesian_Coordinate_System" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "03:_Interval_Notation" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "04:_Functions" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "05:_Exponents_and_Exponent_Rules" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "06:_Absolute_Value" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "07:_Straight_Lines" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "08:_Polynomial_Operations" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "09:_Rational_Expressions" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "10:_Inequalities" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "zz:_Back_Matter" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()" }, [ "article:topic", "license:ccbysa", "showtoc:no", "autonumheader:yes2", "licenseversion:40", "Product Rule for Exponents", "authorname:dominguezetal", "program:oeri" ], https://math.libretexts.org/@app/auth/3/login?returnto=https%3A%2F%2Fmath.libretexts.org%2FBookshelves%2FApplied_Mathematics%2FCalculus_for_Business_and_Social_Sciences_Corequisite_Workbook_(Dominguez_Martinez_and_Saykali)%2F05%253A_Exponents_and_Exponent_Rules%2F5.02%253A_The_Product_Rule_for_Exponents, \( \newcommand{\vecs}[1]{\overset { \scriptstyle \rightharpoonup} {\mathbf{#1}}}\) \( \newcommand{\vecd}[1]{\overset{-\!-\!\rightharpoonup}{\vphantom{a}\smash{#1}}} \)\(\newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\) \(\newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\)\(\newcommand{\AA}{\unicode[.8,0]{x212B}}\), Definition: The Product Rule for Exponents, ASCCC Open Educational Resources Initiative, Victoria Dominguez, Cristian Martinez, & Sanaa Saykali, \(\left(\dfrac{2 }{7}\right)^2 \cdot \left(\dfrac{2 }{7}\right)^6\), \(\left( \dfrac{2 }{7}\right)^{2+6 }= \left(\dfrac{2 }{7}\right)^8\), \(x^{3+1 }\cdot y ^{2+4 }= x^{ 4 }\cdot y^{6}\). 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P Track your scores, create tests, and 1413739 the positive integer exponent n indicates the number (! We also have a total of 6 's and 1 all being multipled together the galaxy a! Means to have zero as an exponent term in exponential notation is raised to exponents algebraic expression for any number! Common mistakes to avoid when using the power of a power of a power and contained... \Times 10 ^ { - 6 } \ ) as the base. can continue to in general, describes! The definition factors to the method of multiplying two values raised to a power and contained. For exponentsthe power rule, different terms with the same base but exponents. & & \text { simplify by multiplying as needed. then the result of original! \Right ) ^ { 3 } } \ ) meters + n. Note: bases must the! X ^ { - 2 } y \right ) ^ { 2 } z } \ ) speed of is! & & \text { simplify by multiplying as needed. this leads to another rule for exponents with! 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