Question 661498
p = 2l+2w=66 or l = (66-2w)/2
a = lw = 216

using area
[(66 - 2w)/2](w) = 216
Multiply both sides by 2
(66-2w)(w) = 216(2)
66w - 2w^2 = 432
-2w^2 + 66w - 432 = 0
-2(w^2 - 33w + 216)=0
divide both sides by -2
w^2 - 33w + 216 = 0
(w -  )(w -  )  mixed signs due to + 216, but - 33
Look for multiple of 216 that add to make 33: 24,9
(w-24)(w- 9)
w = 24, w = 9
width or length is 24ft
width or length is 9ft