#### Answer

$x=-13,13$

#### Work Step by Step

When taking the square root of a number, you get a positive and a negative answer.
$x^2+12=181$
$x^2=169$
$x=-13,13$

Published by
Brooks Cole

ISBN 10:
0-53449-636-9

ISBN 13:
978-0-53449-636-4

$x=-13,13$

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