Need help solving

5. (12 pts) Given: f (x) = (x -4)2(2x -1) a. State the x-intercepts. b. Determine the multiplicity of each of the x-intercepts and state what that means about the graph. C. State the y-intercept. d. Determine the local maxima and the local minima. Round to 2 decimal places, if necessary. e. Determine where f is increasing and where f is decreasing. Write your answer in interval notation. Round to 2 decimal places, if necessary