Answer
$49x^{2}y^{2}-14xy^{2}+y^{2}$
Work Step by Step
$(7xy-y)^{2}=(7xy-y)(7xy-y)=7xy(7xy-y)-y(7xy-y)=(7xy)(7xy)+(7xy)(-y)-y(7xy)-y(-y)=49x^{2}y^{2}-7xy^{2}-7xy^{2}+y^{2}=49x^{2}y^{2}-14xy^{2}+y^{2}$
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Chapter 5 - Section 5.5 - Multiplying Polynomials - Exercise Set - Page 379: 51
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