Answer
$3(3x-2)$
Work Step by Step
List the prime factors of each term. Identify the factors common to all terms.
$9x=(3)\cdot 3\cdot x$
$-6=-1\cdot 2\cdot(3)$
GCF= $3$.
Factor out the GCF.
$9x-6=3(3x)-3(2) \qquad...$apply the Distributive Property.
$=3(3x-2)$