Answer
$36m^2+12mn+n^2$
Work Step by Step
Using $(a+b)^2=a^2+2ab+b^2$ (or the square of a binomial), the given expression, $
(6m+n)^2
,$ is equivalent to
\begin{array}{l}\require{cancel}
(6m)^2+2(6m)(n)+(n)^2
\\\\=
36m^2+12mn+n^2
.\end{array}
Intermediate Algebra (6th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321785045
ISBN 13:
978-0-32178-504-6
Practice Final Exam - Page 705: 12
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