+1982 
A company is creating a box without a top from a piece of cardboard, but cutting out square corners with side length x.
Which expression can be used to determine the greatest possible volume of the cardboard box?
A. (11 − 7x)(11x − 7)
B. (7 − 2x)(11 − 2x)x
C. (7x − 11)(7 − 11x)
D. (x − 7)(x − 11)x
