Question

What are the simplest factors of this polynomial?
x3 + 4x2 – 9x – 36

Select one of the options below as your answer:

A.
(x – 4)(x2 + 3)

B.
(x + 4)(x2 + 3)

C.
(x + 4)(x + 3)(x – 3)

D.
(x – 4)(x + 3)(x – 3)

Answer 1

split in two parts so you have

x^2(x+4) -9 (x+4)

Answer 2

then you have

(x^2-9)(x+4)

Answer 3

do you know how to simplify (x^2-9) = a^2-b^2 = (a+b)(a-b)

Answer 4

Okagy now i understand how to go about the problem now