Answer
$4x^2-36x+81$
Work Step by Step
Using $(a+b)^2=a^2+2ab+b^2$ or the square of a binomial, the product of the given expression, $
(2x-9)^2
,$ is
\begin{array}{l}\require{cancel}
(2x)^2+2(2x)(-9)+(-9)^2
\\\\=
4x^2-36x+81
.\end{array}
Intermediate Algebra (12th Edition)
by Lial, Margaret L.; Hornsby, John; McGinnis, Terry
Published by
Pearson
ISBN 10:
0321969359
ISBN 13:
978-0-32196-935-4
Chapter 4 - Mixed Review Exercises - Page 319: 8
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