Answer
$3(3x-2)$
Work Step by Step
Find the greatest common factor. Find the prime factors of each term and multiply the factors that are common to all the terms.
$9x=\underline3\times3\times x$
$6=\underline3\times2$
GCF $=3$
Factor the GCF out of each term. Use the factors from each term that are not part of the GCF.
$9x-6=3(3x-2)$