Answer
$x=2$ or $x=-8$
Work Step by Step
We are given
$x^2+6x+9=25$
$x^2+6x-16=0$
$(x-2)(x+78)=0$
$x-2=0$ or $x+8=0$
$x=2$ or $x=-8$
Algebra 1: Common Core (15th Edition)
by Charles, Randall I.
Published by
Prentice Hall
ISBN 10:
0133281140
ISBN 13:
978-0-13328-114-9
Chapter 9 - Quadratic Functions and Equations - Chapter Test - Page 607: 18
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