#### Answer

$3(a^2+3)$

#### Work Step by Step

The GCF of the coefficients is 3, and the GCF of the variables is 1, so the GCF of the expression is 3. We factor out the 3 to get $3(a^2+3)$

Published by
Prentice Hall

ISBN 10:
0133186024

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

$3(a^2+3)$

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