Precalculus (6th Edition)

Published by Pearson
ISBN 10: 013421742X
ISBN 13: 978-0-13421-742-0

Chapter R - Review of Basic Concepts - R.7 Radical Expressions - R.7 Exercises - Page 75: 39



Work Step by Step

RECALL: If $n$ is an even integer, $\sqrt[n]{a^n} = |a|$ Using the rule above gives: $\sqrt{(4x-y)^2} \\=\color{blue}{|4x-y|}$
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