The length of a rectangular swimming pool is twice its width. The pool is surrounded by a walk that is 2 feet wide. The area of the region consisting of the pool and the walk is 1056 square feet.
(a) Use the method of completing the square to determine the dimensions of the swimming pool.
! feet, and the width of the pool is
The length of the pool is i
feet.
i
!
(b) If the material for the walk costs $7 per square foot, how much would the material cost for the entire walk?
The material would cost $ i