Optimization

An open box is to be made out of a 10-inch by 18-inch piece of cardboard by cutting out squares of equal size from the four corners and bending up the sides. Find the dimensions of the resulting box that has the largest volume.

I need the dimensions of the bottom of the box and the height of the box.

Please help

Calculus 2

Hi,

Can anybody offer me any insight on how to simplify mathematics and mechanics?
My problem is: I always seem to over-think or over-complicate problems.
Anybody have any advice or key thoughts for me to think of when i am working out problems?

Regards