Intermediate Algebra (6th Edition)

Published by Pearson
ISBN 10: 0321785045
ISBN 13: 978-0-32178-504-6

Chapter 5 - Review: 71

Answer

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

Work Step by Step

Using $(a+b)^2=a^2+2ab+b^2$ or the square of a binomial, then, \begin{array}{l} (3x-y)^2 \\= (3x)^2+2(3x)(-y)+(-y)^2 \\= 9x^2-6xy+y^2 .\end{array}
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