Answer
$16y^2-56y+49$
Work Step by Step
Given: $(4y-7)^2$
Open the given polynomials by applying sum formula of polynomials such as: $(a+b)^2=a^2+b^2+2ab$
Thus, $(4y-7)^2=(4y)^2-2(4y)(7)+(7)^2$
Hence, $=16y^2-56y+49$
Intermediate Algebra for College Students (7th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13417-894-7
ISBN 13:
978-0-13417-894-3
Chapter 5 - Test - Page 402: 12
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