step by step solution with explainatian.Thanks

b) Find the relative maxima and relative minima of the function g(x) = x3 - 3x2 - 24x + 32 by the following steps: i) Find the g'(x), the derivative of the function. (2 marks) ii) Solve for the zeros of the g'(x) or known also as critical number(s). (3 marks) iii) Evaluate the signs of the critical number(s). (5 marks) iv) Provide your comment accordingly your finding on (iii) with regard to relative maxima and relative minima of the function g(x)