Question

A rectangular prism has dimensions x, x+2 and 2x -1. Find its volume in terms of x.

Answer 1

Someone correct me if I'm wrong, but since volume is l*w*h, you just add the three dimensions together. So x*(x+2) = x^2 +2x, then foil that out with 2x-1.

(x^2+2x)(2x-1)
2x^3-x^2+4x^2-2x
Which simplifies to:
2x^3+3x^2-2x

Answer 2

Thankyou very much PlatypusFeet! Appreciate it!

Answer 3

Whoops, I meant multiply. Oh well :P

Answer 4

Yeah that's ok. I understood what you meant haha. Thanks once again!