How to factor. 12x-9
3(4x-3)First, find the GCF of both numbers.The gcf of 12 and 9 is 3.Then you divide it by both numbers.Divide 12x by 3 is 4x and 9 by 3 is 3.
Their GCF is 3, so:12x-9=3(4x-3)