SOLUTION: A square swimming pool has an 8-foot–wide sidewalk around it. If the sides of the pool have length z, find a polynomial that gives the area of the sidewalk.

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: A square swimming pool has an 8-foot–wide sidewalk around it. If the sides of the pool have length z, find a polynomial that gives the area of the sidewalk.      Log On


   

Question 476287: A square swimming pool has an 8-foot–wide sidewalk around it. If the sides of the pool have length z, find a polynomial that gives the area of the sidewalk.
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
8 ft added to each side --> a square z+16 on each side.
It's %28z+%2B+16%29%5E2+-+z%5E2
= 32z + 256 sq ft