The volume of a rectangular prism is 6x^3 -x^2 -2x. Which model could represent the rectangular prism?

Question

A. Height: 3x-2 Length: 2x+1 Width: x

B. Height: 3x+2 Length: 2x-1 Width: x

C. Height: 3x-2 Length: 2x-1 Width: x

D. Height: 2x-2 Length: 3x+1 Width: x

I don't understand how to do the problem, I would appreciate if someone could explain the steps. Thank you!

I think I may have put this in the wrong subject last time. Sorry for the repeated question.

Answer 1

factor:6x^3 -x^2 -2x
x(6x^2-x-2)
x(2x+1)(3x-2)

so since volume=L*W*h those three factors are it.