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A rectangular piece of cardboard is to be formed into an uncovered box. The piece of cardboard is 2 inches longer than it is wide. A square that...

A rectangular piece of cardboard is to be formed into an uncovered box. The piece of cardboard is 2 inches longer than it is wide. A square that measures 3 inches on a side is cut from each corner. When the sides are turned up to form the box, its volume is 765 cubic inches. Find the dimensions, in inches, of the original piece of cardboard.

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