Factor completely: y3+4y2−9y−36y^3 + 4y^2 - 9y - 36y3+4y2−9y−36.
(y+4)(y−3)(y+3)(y+4)(y-3)(y+3)(y+4)(y−3)(y+3)
(y−4)(y2+9)(y-4)(y^2+9)(y−4)(y2+9)
(y+4)(y−9)(y+4)(y-9)(y+4)(y−9)
(y+4)(y2−9)(y+4)(y^2-9)(y+4)(y2−9)