suppose you know that x=2 is a root of equation x^3-2-2^2-x+2=0.use that fact to factor x^3-2-2^2-x+2 to find the other roots of the equation.then associate polynomial function
I believe this is supposed to be :
x^3 - 2x^2 - x + 2 = 0 if so....factor by grouping
x^2(x - 2) - 1 ( x - 2) = 0 take out common factor (x - 2)
(x - 2) (x^2 - 1) = 0 factor (x^2 - 1 )
(x - 2) (x + 1) (x - 1) = 0 set each factor to 0 and the roots are 2, -1 and 1