Factor ab+6a-3b-18

$a b + 6 a - 3 b - 18$

Step 1

Factor out the greatest common factor from each group.

Group the first two terms and the last two terms.

$(a b + 6 a) - 3 b - 18$

Factor out the greatest common factor (GCF) from each group.

$a (b + 6) - 3 (b + 6)$

Step 2

Factor the polynomial by factoring out the greatest common factor, $b + 6$ .

$(b + 6) (a - 3)$