Explain step by step

Question 1) Consider the following function: 1 f(x) = 7 (x - 1)2 ( x - 2) 2 a) Explain why the slope of f (x) does not exist at x = 1 or x = 2 b) Find and classify all stationary points of f (x) Question 2) The function f(x) = x3 - 2x has infinitely many pairs of parallel tangents. Find the equation of the tangent to f (x) at x = 2 and the other tangent which is parallel to it