A rectangular pool is to be installed.The depth,h,of the pool is 2 meters more than half of the width(w),and the length,I, is 12 meters more than 4 times the width (w). If the width (w) of the ground is x meters and the surface area of the rectangular pool,only including the floor and the inside walls,is y square meters.which equation best describes the surface area of the rectangular pool?