Answer
2.5$x^{2}$
Work Step by Step
x+.5$x^{2}$+2$x^{2}$-x
The positive and negative x cancel out to get .5$x^{2}$+2$x^{2}$. Because these are like terms, they combine to get .5$x^{2}$+2$x^{2}$=2.5$x^{2}$.
Algebra 2 Common Core
by Hall, Prentice
Published by
Prentice Hall
ISBN 10:
0133186024
ISBN 13:
978-0-13318-602-4
Chapter 1 - Expressions, Equations, and Inequalities - 1-3 Algebraic Expressions - Practice and Problem-Solving Exercises - Page 23: 47
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