Algebra: A Combined Approach (4th Edition)

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

Chapter 6 - Review - Page 473: 28



Work Step by Step

18$x^{2}$-9xy-20$y^{2}$=18$x^{2}$-24xy+15xy-20$y^{2}$= 6x(3x-4y)+5y(3x-4y)=(6x+5y)(3x-4y)
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