A rectangle box is twice as long as it is wide. the height of the box is 3 feet less than the width. if the box is x feet wide, what polynominal represents its volume in cubic feet

The width is given as x.

The length is twice the width, so is 2x.

The height is 3 less than the width, so is x-3.

The volume is (length) * (width) * (height), so is (2x) (x) (x - 3). Eliminating parentheses, the volume in cubic feet is represented by the polynomial ...

2x³ - 6x²