Answer
$6x(2x^2+3)$
Work Step by Step
$Factor$ $the$ $expression$ $completely:$
$12x^3 + 18x$
The common factor for both terms is 6x.
$6x(2x^2+3)$
We can check the answer by distributing the 6x to both terms.
$6x(2x^2+3) = (6x\times2x^2) + (6x\times 3)$
$= 12x^3 + 18x$
