Intermediate Algebra (12th Edition)

Published by Pearson
ISBN 10: 0321969359
ISBN 13: 978-0-32196-935-4

Chapter 7 - Section 7.1 - Radical Expressions and Graphs - 7.1 Exercises - Page 439: 1

Answer

E. -4

Work Step by Step

We know that $\sqrt 16=4$, because $4^{2}=4\times4=16$. Therefore, $-\sqrt 16=-(4)=-4$.
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