Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Appendix A - Exercise Set: 41

Answer

$9x^{2}-6xy+y^{2}$

Work Step by Step

Using the square of the binomial $(a-b)^{2}=a^{2}-2ab+b^{2}$, $(3x-y)^{2}=(3x)^{2}-2(3x)(y)+y^{2}=9x^{2}-6xy+y^{2}$.
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