#### Answer

19x$^2$

#### Work Step by Step

Simplify the expression by combining like terms.
7x$^2$+12x$^2$=(7+12)x$^2$=19x$^2$

Published by
Pearson

ISBN 10:
0-13417-805-X

ISBN 13:
978-0-13417-805-9

19x$^2$

Simplify the expression by combining like terms.
7x$^2$+12x$^2$=(7+12)x$^2$=19x$^2$

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