Question

Factor the polynomial completely.

z^3(y^2 − 9) + 125(y^2 − 9)

Answer 1

(z^3+125)(y^2-9)

Answer 2

for y^2-9 = (y+3)(y-3)

Answer 3

For z^3+125 = z^3 +5^3 = (z+5)(z^2-5z+25)

Answer 4

(z+5)(z^2-5z+25)(y+3)(y-3)