#### Answer

C.

#### Work Step by Step

$x^2+5=0$
Subtract 5 from both sides.
$x^2=-5$
Take the square root of both sides. Remember that $\sqrt{-1}=i$.
$x=\pm{i}\sqrt5$
Thus, the answer is C.

Published by
Pearson

ISBN 10:
0321671791

ISBN 13:
978-0-32167-179-0

C.

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