Jenny cuts squares from the corners of a rectangular piece of aluminum. Each square has side length 2 centimeters. She then folds the aluminum upwards to make a box with no top. The length of the original piece of aluminum was x centimeters. The width of the original piece of aluminum was 4 centimeters less than its length. Suppose that the volume of the box is 192 cubic centimeters use the information to write a quadratic equation that can be used to find x.
Use that equation to find the length and width of the original piece of aluminum.