Answer
18a$^2$-11ab-10b$^2$
Work Step by Step
(9a-10b)(2a+b)
9a(2a)+9a(b)-10b(2a)-10b(b)
18a$^2$+9ab-20ab-10b$^2$
18a$^2$-11ab-10b$^2$
Introductory Algebra for College Students (7th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13417-805-X
ISBN 13:
978-0-13417-805-9
Chapter 5 - Mid-Chapter Check Point - Page 378: 11
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