Answer
$x=16$
Work Step by Step
$\sqrt x-4=0$
Add 4 to both sides.
$\sqrt x-4+4=0+4$
Simplify.
$\sqrt x=4$
Square both sides.
$(\sqrt x)^2=4^2$
Simplify.
$x=16$
Introductory Algebra for College Students (7th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13417-805-X
ISBN 13:
978-0-13417-805-9
Chapter 8 - Section 8.5 - Radical Equations - Exercise Set - Page 607: 3
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.
