#### Answer

even

#### Work Step by Step

Checking is a must when both sides of a radical equation are raised to an even power.

Published by
Pearson

ISBN 10:
0-32184-874-8

ISBN 13:
978-0-32184-874-1

even

Checking is a must when both sides of a radical equation are raised to an even power.

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.