Answer
$(x+y)(5a-4b)$
Work Step by Step
$5ax+5ay-4bx-4by=5a(x+y)-4b(x+y)=(x+y)(5a-4b)$
Intermediate Algebra for College Students (7th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13417-894-7
ISBN 13:
978-0-13417-894-3
Chapter 11 - Cumulative Review Exercises - Page 872: 21
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