16y2+8y-15

Factor 8 out of 8y.

16y2+8(y)-15

Rewrite 8 as -12 plus 20

16y2+(-12+20)y-15

Apply the distributive property.

16y2-12y+20y-15

16y2-12y+20y-15

Group the first two terms and the last two terms.

(16y2-12y)+20y-15

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

4y(4y-3)+5(4y-3)

4y(4y-3)+5(4y-3)

Factor the polynomial by factoring out the greatest common factor, 4y-3.

(4y-3)(4y+5)

Factor 16y^2+8y-15