Answer
$x=7$
Work Step by Step
$\sqrt {x+2}=3$
Square both sides.
$(\sqrt {x+2})^2=3^2$
Simplify.
$x+2=9$
Subtract 2 from each side.
$x+2-2=9-2$
Simplify.
$x=7$
Introductory Algebra for College Students (7th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13417-805-X
ISBN 13:
978-0-13417-805-9
Chapter 8 - Section 8.5 - Radical Equations - Exercise Set - Page 607: 5
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