Answer
16$x^{2}$ -72xy + 81$y^{2}$
Work Step by Step
$(4x-9y)^{2}$ binomial squared
$(4x)^{2}$ -2(4x)(9y) + $(9y)^{2}$
16$x^{2}$ -72xy + 81$y^{2}$
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 5.6 - Special Products - Exercise Set - Page 388: 78
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