#### Answer

$3x^2(3x^2+6x+2)$

#### Work Step by Step

Factor out the greatest common factor, which is $3x^2$, to obtain:
$9x^4+18x^3+6x^2=3x^2(3x^2+6x+2)$

Published by
Pearson

ISBN 10:
0-13417-894-7

ISBN 13:
978-0-13417-894-3

$3x^2(3x^2+6x+2)$

Factor out the greatest common factor, which is $3x^2$, to obtain:
$9x^4+18x^3+6x^2=3x^2(3x^2+6x+2)$

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