#### 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$x^{2}$.

Published by
Prentice Hall

ISBN 10:
0133186024

ISBN 13:
978-0-13318-602-4

2.5$x^{2}$

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