first yu check some numbers like 1 or 2 so yu will got 2 is answer after that yu must divide yur problem to X-2 that is:
x^3-x^2 -4x +4 =(x-2)*(x^2+x-2) so the answers are -2 ,2,1
A. x^3 goes to infinity as x-->infinity and to negative infinity as x-->negative infinity. B. x^3 +x^2 -4x -4 = (x^2 -4)(x+1) = 0 if x = -1, -2, 2. Crosses the x axis at each of these. C. (0,-4) D. Neither E. Turns between -1 and -2. Turns between 0 and 1.