Posted by Anonymous on .
The length of a rectangular floor is 2 feet more than its width. The area of the floor is 168 square feet. Kim wants to use a rug in the middle of the room and leave a 2 foot border of the floor visible on all sides. What should the length (the longer side) of the rug be?

Math, not "12th grade" 
Writeacher,
Please type your subject in the School Subject box. Any other words, including obscure abbreviations, are likely to delay responses from a teacher who knows that subject well.

12th grade 
Reiny,
first first the dimensions of the room ....
x(x+2) = 168
x^2 + 2x  168 = 0
(x12)(x+14) = 0
I am sure you can take it from here