Determine coordinates of points where graph cuts x axis

Question

Provided rational function f(X) = (2x^2 - 4x - 70) / (x^3 + x^2 -12x)

Let G be graph of this function

i)G cuts x axis at 2 points A and B. Determine coordinates of A and B
ii)G has the horizontal asymptote. Determine the equation of this asymptote
iii)G has 3 vertical asymptotes. Determine equation of these asymptotes.