Answer
$x=-5 \pm2 \sqrt 3$
Work Step by Step
$(x+5)^{2}=12$
Square root both sides
$(x+5)=\pm \sqrt 12$
Simplify the $\sqrt 12$
$x+5= \pm 2\sqrt 3$
Subtract 5 from both sides
$x=-5 \pm2 \sqrt 3$
Intermediate Algebra (6th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321785045
ISBN 13:
978-0-32178-504-6
Chapter 8 - Sections 8.1-8.3 - Integrated Review - Summary on Solving Quadratic Equations - Page 504: 4
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