Answer
$\sqrt[4]{-16}$ is not a real number.
Work Step by Step
There is no real number that, when raised to the fourth power, equals $-16$.
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Chapter 10 - Section 10.1 - Radical Expressions and Radical Functions - Practice - Page 683: 21
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