* I know how to graph this but I don't know how to punch the equation in correctly. I am not sure about the window either..

How can I type this equation in the graphing calculator?

y=pi(25-x)^2 • 2x

Note, the 2x is NOT multiplied by 2..
Show how I can type this in .. Parantheses and other notions .....

y=2*pi*x*(25-x)^2