Answer
-3$x^{2}$
Work Step by Step
7$x^{2}$ - 10$x^{2}$
=(7-10) $x^{2}$ ( Combine like terms)
= -3$x^{2}$
Thinking Mathematically (6th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0321867327
ISBN 13:
978-0-32186-732-2
Chapter 6 - Algebra: Equations and Inequalities - 6.1 Algebraic Expressions and Formulas - Exercise Set 6.1 - Page 347: 44
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