Factor ab+2a-b-2

$a b + 2 a - b - 2$

Step 1

Factor out the greatest common factor from each group.

Group the first two terms and the last two terms.

$(a b + 2 a) - b - 2$

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

$a (b + 2) - (b + 2)$

Step 2

Factor the polynomial by factoring out the greatest common factor, $b + 2$ .

$(b + 2) (a - 1)$