Answer
$3(g-2)(g^2+2g+4)$
Work Step by Step
First, pull out the greatest common factor. Then use the formula $a^3-b^3=(a-b)(a^2+ab+b^2)$ to factor.
$3g^3-24$
$=3(g^3-8)$
$=3(g-2)(g^2+2g+4)$
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