Factor by Grouping y^2+3y-5y-15

$y^{2} + 3 y - 5 y - 15$

Factor out the greatest common factor from each group.

Group the first two terms and the last two terms.

$(y^{2} + 3 y) - 5 y - 15$

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

$y (y + 3) - 5 (y + 3)$

Factor the polynomial by factoring out the greatest common factor, $y + 3$ .

$(y + 3) (y - 5)$