#### Answer

$9x^2+8$

#### Work Step by Step

This is our original problem:
$6x^2+3x^2+7+1$
We need to simplify this equation by adding like terms.
$9x^2+8$

Published by
Prentice Hall

ISBN 10:
0133500403

ISBN 13:
978-0-13350-040-0

$9x^2+8$

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