#### Answer

$x=\pm4$

#### Work Step by Step

First, we divide both sides by 2 to isolate $x^2$ to get $x^2=16$. Take the square root of both sides to get $x=\pm4$.

Published by
Prentice Hall

ISBN 10:
0133186024

ISBN 13:
978-0-13318-602-4

$x=\pm4$

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