Precalculus (6th Edition) Blitzer

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

Chapter 9 - Cumulative Review Exercises - Page 1038: 4


$x=2\pm 2\sqrt 5$

Work Step by Step

Step 1. Using the square root property, we have $x-2=\pm\sqrt {20}$ Step 2. Thus, we have the solutions $x=2\pm 2\sqrt 5$
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