Arectangular gym has an area of 4x^2ft^2. the school decides to add a new weight room. the total area of the gym and the weight room is (4x^2+520) ft^2

The complete question is
A rectangular gym has an area of 4x^2 ft². The school decides to add a new weight room. The total area of the gym and the weight room is (4x² + 520) ft². What does 
the constant term represent in terms of this problem?

let 
AT> area total of the gym and the weight room
G> area of the gym
W> area of the weight room

we know that
G=4x² ft²
AT=(4x²+520) ft²
W=?

AT=G+W> W=AT-G> W=(4x²+520)-(4x²)> W=520 ft²

therefore
the constant term represent the area of the weight room

the answer is
the constant term represent the area of the weight room