Answer
$6(3v^2+4)(2v-7)$
Work Step by Step
$36v^3-126v^2+48v-168$
Factor out the GCF
$=12v(3v^2+4)-42(3v^2+4)$
Factor by grouping
$=(3v^2+4)(12v-42)$
$=6(3v^2+4)(2v-7)$
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