You can put this solution on YOUR website! find all the zeros of this polynomial function f(x)=x^3+x^2-5x+3
Using the rational roots theorem:
...0..|...1......1.......-5..........3..............
...1..|...1......2.......-3..........0 (1 is a root)
(x-1)(x^2+2x-3)=(x-1)((x+3)(x-1)
zeros: -3, & 1(multiplicity 2)