Answer
$-6x^2-4x$
Work Step by Step
By combining like terms, the given expression, $
-10x^2+4x+4x^2-8x
,$ simplifies to
\begin{array}{l}\require{cancel}
(-10x^2+4x^2)+(4x-8x)
\\\\=
-6x^2-4x
.\end{array}
Elementary Algebra
by Kaufmann, Jerome; Schwitters, Karen;
Published by
Cengage Learning
ISBN 10:
1285194055
ISBN 13:
978-1-28519-405-9
Chapter 2 - Real Numbers - 2.4 - Exponents - Problem Set 2.4 - Page 75: 62
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