Answer
$x^{3}-2x^{2}-3x=0$
Work Step by Step
$x=-1$ or $x=0$ or $ x=3\qquad$....get $0$'s on one side.
$x+1=0$ or $x=0$ or $ x-3=0\qquad$....Use the principle of zero products (multiplying). The solutions of this equation are $-1,\ 0$ and $3$.
$(x+1)x(x-3)=0\qquad$...use the FOIL method to multiply.
$(x^{2}+x)(x-3)=0\qquad$...use the FOIL method to multiply.
$ x^{3}-3x^{2}+x^{2}-3x=0\qquad$...combine like terms.
$x^{3}-2x^{2}-3x=0$