please answer this question!

Find the absolute maximum and absolute minimum values of the function f(x) = 5 + 54x -2x3 on the interval [0, 4] Note: Write only the value, for example if the absolute minimum value is f(1)= -10, then only write -10. Answer. The critical number of f in the interval [0, 4] is a = Number The absolute maximum value of the function is Number The absolute minimum value of the function is Number