Question

x^3-x^2-10x-8
evaluate

Answer 1

first you try to find out one solution of this equation.

means ,as you can see -1 is one solution of the equation.

so X=-1, X+1=0 now try to understand what I am doing here

your expression is x^3-x^2-10x-8

X^2(X+1)-2X(X+1)-8(X+1)=0 -------------(X+1 =0)

(X+1)(X^2-2X-8)=0

(X+1)(X+2)(X-4)=0-------ANS.