College Algebra (10th Edition)

Published by Pearson
ISBN 10: 0321979478
ISBN 13: 978-0-32197-947-6

Chapter R - Section R.2 - Algebra Essentials - R.2 Assess Your Understanding - Page 27: 85

Answer

4

Work Step by Step

First solve$ (-4)^2$ which is 16. The square root of 16 is 4
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