#### Answer

$3x^2+10x$

#### Work Step by Step

To combine like terms, add the coefficients.
$x^2+2x^2+3x+7x=(1+2)x^2+(3+7)x=3x^2+10x$

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Published by
Brooks Cole

ISBN 10:
1285199197

ISBN 13:
978-1-28519-919-1

$3x^2+10x$

To combine like terms, add the coefficients.
$x^2+2x^2+3x+7x=(1+2)x^2+(3+7)x=3x^2+10x$

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