Answer
$36r^2-60r+25$
Work Step by Step
Using $(a\pm b)^2=a^2\pm2ab+b^2$ or the square of a binomial, the given expression, $
(6r-5)^2
,$ is equivalent to
\begin{array}{l}\require{cancel}
(6r)^2-2(6r)(5)+(5)^2
\\\\=
36r^2-60r+25
.\end{array}
College Algebra (11th Edition)
by Lial, Margaret L.; Hornsby John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
0321671791
ISBN 13:
978-0-32167-179-0
Chapter R - Test - Page 77: 10
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