Answer:
Step-by-step explanation:
Given : The dimension of a rectangle is (x+10)ft. by (x+4)ft.
Then, Area of rectangle will be :-
If a square of length xft on a side is cut from the rectangle, then the area of the square :-
Now, the remaining area in the form of a polynomial function A(x) will be :-
Hence, the remaining area in the form of a polynomial function A(x) will be :-
Answer\
X is 84 ;)