Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 7 - Exponents and Exponential Functions - 7-5 Rational Exponents and Radicals - Lesson Check - Page 450: 9

Answer

Rule: $\sqrt[n]{a^{m}}\cdot\sqrt[p]{a^{m}}=\sqrt[np]{a^{m(p+n)}}$

Work Step by Step

Applying the key concept of this section, $\sqrt[n]{a^{m}}=a^{m/n}, \qquad\sqrt[p]{a^{m}}=a^{m/p}$ $\sqrt[n]{a^{m}}\cdot\sqrt[p]{a^{m}}=a^{m/n}\cdot a^{m/p}$ $=a^{\frac{m}{n}+\frac{m}{p}}\qquad$ ... multiplying powers of the same base $=a^{\frac{mp+mn}{np}}\qquad$ ... simplify the exponent $=\sqrt[np]{a^{mp+mn}}\qquad$ ... applied key concept $=\sqrt[np]{a^{m(p+n)}}$ Rule: $\sqrt[n]{a^{m}}\cdot\sqrt[p]{a^{m}}=\sqrt[np]{a^{m(p+n)}}$
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