If x= -1 is a root of x3+3x2-x-3=0 use synthetic division to factor the polynomial completely. That is x = -1 is a root of x to the third power + 3x squared -x-3 = 0. They then give for chives as answers, but can't figure where to begin. The answer is one of the below: (X+3) (X-3) (x-1) (X-3) (x+1) (x-1) (X+3) (x+1) (x-1) (X+3)2 (x+1) Please explain how to arrive at the