# Use free input to show how to integrate step by step this integral?

GROUPS:
 integral. I tried using the free input to show me how to integrate the following integral but it didn't show me the steps. Solve with steps the integral of x*(2*a^2)*arccos(x/(2*a))-(x^2/2)*sqrt(4a^2-x^2) in the interval [0,a] How to make Mathematica show me the steps?Thanks.