OK heres the problem:
Designing a Swimming Pool
Thompson Recreation, Inc., wants to build a rectangular swimming pool with the top of the pool having surface are 1000ft squared. The pool is required to have a walk of uniform width 2 ft surrounding it. Let x be the length of one side of the pool.
a.Express the area of the plot of land needed for the pool and surrounding sidewalk as a function of x.
b.Find the dimensions of the plot of land that has the least area. What is the least area?
please help..i don't even know where to start ..PLEASE HELP!!!!