Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 10 - Review - Page 746: 16



Work Step by Step

According to the text, if n is an even positive integer, then $\sqrt[n] {x^{n}}=|x|$. Therefore, $\sqrt [4] {(x^{2}-4)^{4}}=|x^{2}-4|$.
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