Answer
$9x^2y-6xy$
Work Step by Step
Consider the given polynomial
$(7x^2y-5xy)+(2x^2y-xy)$
Need to drop the parentheses.
Thus,
$(7x^2y-5xy)+(2x^2y-xy)=7x^2y-5xy+2x^2y-xy$
or, $=7x^2y+2x^2y-5xy-xy$
or, $=9x^2y-6xy$
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 5 - Section 5.1 - Introduction to Polynomials and Polynomial Functions - Exercise Set - Page 325: 33
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