Answer
$18y^{2}-17$
Work Step by Step
We are given the polynomial $(9y^{2}+y-8)+(9y^{2}-y-9)$. We can simplify by combining like terms.
$(9y^{2}+9y^{2})+(y-y)+(-8-9)=18y^{2}-17$
Intermediate Algebra (6th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321785045
ISBN 13:
978-0-32178-504-6
Chapter 5 - Section 5.3 - Polynomials and Polynomial Functions - Exercise Set - Page 279: 35
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