Answer
$-5n^2+n+7$.
Work Step by Step
The given polynomial is
$=(-3n^2+n)-(2n^2-7)$
Clear the parentheses.
$=-3n^2+n-2n^2+7$
Group like terms.
$=-3n^2-2n^2+n+7$
Combine like terms.
$=-5n^2+n+7$.
Big Ideas Math - Algebra 1, A Common Core Curriculum
by Larson, Ron; Boswell, Laurie
Published by
Big Ideas Learning LLC
ISBN 10:
978-1-60840-838-2
ISBN 13:
978-1-60840-838-2
Chapter 7 - Polynomial Equations and Factoring - 7.1-7.4 - Quiz - Page 384: 6
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