Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter P - Section P.3 - Radicals and Rational Exponents - Exercise Set - Page 45: 60


The root is not a real number.

Work Step by Step

When the index of a radical is even, the radicand is not allowed to be negative since its root is not a real number. The given radical has an index of 4, which is even, and a negative radicand. Thus, the root of the given radical is not a real number.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.