Answer
$2a^2-5a-3$
Work Step by Step
By combining like terms, the given expression, $
3a^2-6a-a^2+7+a-10
$, simplifies to
\begin{array}{l}\require{cancel}
(3a^2-a^2)+(-6a+a)+(7-10)
\\\\=
2a^2-5a-3
.\end{array}
Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)
by Bittinger, Marvin L.; Ellenbogen, David J.; Johnson, Barbara L.
Published by
Pearson
ISBN 10:
0-32184-874-8
ISBN 13:
978-0-32184-874-1
Chapter 4 - Polynomials - Mid-Chapter Review - Mixed Review - Page 263: 14
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