Simon has 160160160 meters of fencing to build a rectangular garden.
The garden's area (in square meters) as a function of the garden's width www (in meters) is modeled by
A(w)=-w(w-80)A(w)=−w(w−80)A, left parenthesis, w, right parenthesis, equals, minus, w, left parenthesis, w, minus, 80, right parenthesis
What width will produce the maximum garden area?