Question

!!!!!!!!!!!!!!!! HELP 25 points

What is the completely factored form of

x3 + 4x2 – 9x – 36?

(x + 3)(x – 3)

(x2 – 9)(x + 4)

(x + 3)(x – 3)(x + 4)

(x – 3)(x – 3)(x + 4)

Answer 1

x3 + 4x2 - 9x - 36

x2 (x + 4) - 9(x + 4)

(x2 - 9) (x + 4)

(x - 3) (x + 3) (x + 4)