Suppose the derivative of a function f is f'(x)=(x-5)^6 (x+4)^5 (x-2)^4. Where is f increasing?

Suppose the derivative of a function f is f'(x)=(x-5)^6 (x+4)^5 (x-2)^4. On what interval(s) is f increasing? (Enter your answer using interval notation.)