(1 point) You wish to pack a cardboard box inside a wooden crate. In order to have room for the packing materials, you need to leave a 0.5 \ \mbox{ft} space around the front, back, and sides of the box, and a 1 \ \mbox{ft} space around the top and bottom of the box. If the cardboard box is x feet long, (x 3) feet wide, and (x-1) feet deep, find a formula in terms of x for the amount of packing material, M, needed. M(x)