Answer
$7x^3y-18x^2y-y-9$
Work Step by Step
Given: $(4x^3y-19x^2y-7y)+(3x^3y+x^2y+6y-9)$
Need to the add the polynomials.
$=4x^3y-19x^2y-7y+3x^3y+x^2y+6y-9$
Add the same variables terms.
Hence, $=7x^3y-18x^2y-y-9$
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 - Test - Page 401: 6
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