Introductory Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-805-X
ISBN 13: 978-0-13417-805-9

Chapter 8 - Section 8.6 - Rational Exponents - Exercise Set - Page 614: 7



Work Step by Step

RECALL: (i) $a^{\frac{1}{3}}=\sqrt[3]{a}$ (ii) $\sqrt[3]{a^3}=a$ Use rule (i) above to obtain: $=-\sqrt[3]{125}$ Write 125 as $5^3$: $=-\sqrt[3]{5^3}$ Use rule (ii) above to obtain: $=-5$
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