Intermediate Algebra (6th Edition)

Published by Pearson
ISBN 10: 0321785045
ISBN 13: 978-0-32178-504-6

Chapter 7 - Review - Page 468: 15

Answer

$|-x|$

Work Step by Step

$\sqrt ((-x)^{2})=|-x|$ Since we do not know if x represents a positive number, we must keep the absolute value to ensure that the result is not negative.
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