Answer
$2y^2+2y-11$
Work Step by Step
The given expression simplifies to
\begin{array}{l}
(-y^2+6y-1)+(3y^2-4y-10)
\\=
(-y^2+3y^2)+(6y-4y)+(-1-10)
\\=
2y^2+2y-11
.\end{array}
Intermediate Algebra (6th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321785045
ISBN 13:
978-0-32178-504-6
Chapter 5 - Sections 5.1-5.7 - Integrated Review - Operations on Polynomials and Factoring Strategies - Page 310: 1
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