Question

Four is a zero of the equation X^3+3X^2-18X-40=0

Which factored form is equivalent to the equation?

A) (X−4)(X+2)(X+5)=0

B) (X+4)(X+2)(X+5)=0

C) (X−4)(X+4)(X+5)=0

D) (X+2)(X−4√)(X+4√)=0

A is the answer