Answer
$2$.
Work Step by Step
The given expression is
$=\sqrt{x^2}$
Substitute $x=2$.
$=\sqrt{2^2}$
The principal square root is nonnegative.
The absolute value is
$=2$.
Precalculus (10th Edition)
by Sullivan, Michael
Published by
Pearson
ISBN 10:
0-32197-907-9
ISBN 13:
978-0-32197-907-0
Appendix A - Review - A.1 Algebra Essentials - A.1 Assess Your Understanding - Page A12: 113
Update this answer!
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.
