Answer
$x=\pm 4$
Work Step by Step
We solve:
$(x^{2}+9)^{1/2}=5$
$[(x^{2}+9)^{1/2}]^{2}=5^{2}$
$x^{2}+9=25$
$x^{2}=16$
$x=\pm\sqrt{16}$
$x=\pm 4$
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.