Answer
$|x+6|$
Work Step by Step
The square of a binomial sum is: $(A+B)^2=A^2+2AB+B^2$.
$\sqrt[n] {a^n}=|a|$ if $n$ is even.
Hence here: $\sqrt{x^2+12x+36}=\sqrt{(x+6)^2}=|x+6|$
Intermediate Algebra for College Students (7th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13417-894-7
ISBN 13:
978-0-13417-894-3
Chapter 7 - Section 7.1 - Radical Expressions and Functions - Exercise Set - Page 512: 43
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.
