Answer
$x=2\pm 2\sqrt 5$
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 $x=2\pm 2\sqrt 5$
Precalculus (6th Edition) Blitzer
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13446-914-3
ISBN 13:
978-0-13446-914-0
Chapter 9 - Cumulative Review Exercises - Page 1038: 4
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