Answer
-5y$^2$-15y+20
Work Step by Step
$\;$$y^3+y^2-7y+9$
-$\underline{y^3-6y^2-8y+11}$
$\quad$$-5y^2-15y+20$
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 - Section 5.1 - Adding and Subtracting Polynomials - Exercise Set - Page 349: 46
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