Q5 please help

Question 5 Suppose that f (x) = x2-1 a) Show that f (x) = -2x (x2 -1)2 b) Show that f (x) = 2(3x7+1) (x3-1)3 c) Solve for the vertical and horizontal asymptotes. d) Solve for the critical points. e) Solve for the intervals of increase and decrease. f) Solve for the local maximums and/or minimums. g) Solve for the intervals of concavity. h) Sketch the curve f (x) - 2 1