PLEASE HELP!!
A box without a top is made from a rectangular piece of cardboard, with dimensions 4 m by 2 m, by cutting out square corners with side length x.
Which equation can be used to determine the greatest possible volume of the cardboard box?
A. (4−x)(2−x)x=0
B. (4−2x)(2−2x)x=0
C. (x−4)(x−2)x=0
D. (4x−2)(2x−4)=0
