Answer
$x^2+10x+25$
Work Step by Step
Using the given functions, then,
\begin{align*}
[R(x)]^2&=(x+5)^2
\\=
(x)^2+2(x)(5)+(5)^2
\\=
x^2+10x+25
.\end{align*}
Intermediate Algebra (6th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321785045
ISBN 13:
978-0-32178-504-6
Chapter 5 - Section 5.4 - Multiplying Polynomials - Exercise Set - Page 290: 114
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