Arectangular piece of cardboard is a = 11 in. longer than it is wide. squares 2 in. on a side are to be cut from each corner and then the sides folded up to make an open box with a volume of 84 in3. find the length and width of the piece of cardboard.

A rectangular piece of cardboard is 2 units longer than it is wide. From each of its corners a square piece 2 units on a side is cut out. The flaps are then turned up to form an open box that has a volume of 70 cubic units. Find the length and width of the original piece of cardboard. 

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