Calculus homeowork

A candy box is made from a piece of cardboard that measures 25

by

14

inches. Squares of equal size will be cut out of each corner. The sides will then be folded up to form a rectangular box. What size square should be cut from each corner to obtain maximum volume?

A square with a side of length nothing

inches should be cut away from each corner to obtain the maximum volume.

(Round to the nearest hundredth as needed.)