College Algebra (6th Edition)

Published by Pearson
ISBN 10: 0-32178-228-3
ISBN 13: 978-0-32178-228-1

Chapter P - Prerequisites: Fundamental Concepts of Algebra - Exercise Set P.3 - Page 48: 60

Answer

Not a real number

Work Step by Step

We know that $\sqrt[4] -81$ is not a real number, because there is no real number $a$ such that $a^{4}=-81$.
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