Answer
$$ x=-2\pm 4\sqrt3$$
Work Step by Step
We use square roots in order to isolate x and solve the equation:
$$ (x+2)^2 = 48 \\ x+2 =\pm \sqrt{48} \\ x=-2\pm 4\sqrt3$$
Algebra 2 (1st Edition)
by Larson, Ron; Boswell, Laurie; Kanold, Timothy D.; Stiff, Lee
Published by
McDougal Littell
ISBN 10:
0618595414
ISBN 13:
978-0-61859-541-9
Chapter 4 Quadratic Functions and Factoring - Chapter Test - Page 323: 15
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