Precalculus (6th Edition) Blitzer

by Blitzer, Robert F.

Published by Pearson

ISBN 10: 0-13446-914-3

ISBN 13: 978-0-13446-914-0

Chapter P - Review Exercises - Page 143: 57

Answer

$-5$

Work Step by Step

We know that any two opposite operations cancel each other out. Since the 4th power and 4th root are opposites, we know that $\sqrt[4] {(-5)^4}=-5$.

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