Politecnico Americano Identify the Local Maximum and Minimum Points Questions

I’m working on a calculus exercise and need the explanation and answer to help me learn. Let’s consider the function f(x) = x^3 – 2x^2 – 11x + 12.1. Find the critical points of the function.2. Determine the intervals on which the function is increasing and decreasing.3. Identify the local maximum and minimum points.