Factor by Grouping 5ac-5bc-a+b

$5 a c - 5 b c - a + b$

Step 1

Factor out the greatest common factor from each group.

Group the first two terms and the last two terms.

$(5 a c - 5 b c) - a + b$

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

$5 c (a - b) - (a - b)$

Step 2

Factor the polynomial by factoring out the greatest common factor, $a - b$ .

$(a - b) (5 c - 1)$