Question 995929
(12-2x)(15-2x) is the rug fitting in the room, with borders equal and are x.
This expands to 180-54x+4x^2=108, units in feet, product in square feet
4x^2-54x-72=0
(2x-3)(2x-24)=0
x=12 (won't work), 1.5
The border is 1.5 feet wide.
The rug is 9 *12 feet or 108 square feet.