Answer
$x+5+2\sqrt (x+4)$
Work Step by Step
$(\sqrt (x+4)+1)^{2}$
Using $(A+B)^{2}=A^{2}+2AB+B^{2}$
$(\sqrt (x+4)+1)^{2}=(\sqrt (x+4))^{2}+2(\sqrt (x+4))(1)+1^{2}$
$=x+4+2\sqrt (x+4)+1$
Combine numeric terms.
$=x+5+2\sqrt (x+4)$
College Algebra (6th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-32178-228-3
ISBN 13:
978-0-32178-228-1
Chapter 1 - Equations and Inequalities - Exercise Set 1.5 - Page 164: 178
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