Jae is constructing an open box from a piece of cardboard that is 9 in. wide and 12 in. long. He cuts squares of equal size from each corner of the cardboard, as shown in the picture, and then folds up the sides of the box. Write and simplify a polynomial function V for the volume of the box in
terms of x.
X
х
O A. V(X) = x2 - 21x + 108
OB. VX) = 4x2 - 42x + 108
OC. VIX) = 4x3 - 42x? +
- 108
D. V(X) = 4x3 - 21x2 + 108x
No