Factor out the common monomial: x^{3}+2x^{2}-15x

(A) x(x^{2}+2x-15)

(B) (x – 3)(x + 5)

(C) (x^{2}-3)(x+5)

(D) (x + 3)(x^{2}-5x+3)

x is the common monomial factor, so factoring x out gets us:

x^{3}+2x^{2}-15x= x(x^{2}+2x-15)