Answer
$18a^2-11ab-10b^2$
Work Step by Step
Simply FOIL the terms in the parentheses and then combine like terms to simplify.
$(9a-10b)(2a+b)$
$18a^2+9ab-20ab-10b^2$
$18a^2-11ab-10b^2$
College Algebra (6th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-32178-228-3
ISBN 13:
978-0-32178-228-1
Chapter P - Prerequisites: Fundamental Concepts of Algebra - Mid-Chapter Check Point - Page 63: 12
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