Question

Find the volume of a rectangular prism if the length is (4x+3), width is (x-6), and height is (2x-1).

Answer 1

You need to multiply all of them.
(4x+3)x(x-6)= 4x^2-21x-18, that times (2x-1)=
8x^3-4x^2-42x^2+21x-36x+18, simplified =
8x^3-46x^2-15x+18