The passenger section of a train has width 2x-7, length 2x+3 and height x-2 with all dimensions in metres. Solve a polynomial equation to determine the dimensions of the section of the train if the volume is 117 m^3

Answer 1

well, it would have to be
(2x-7)(2x+3)(x-2) = 117
4x^3 - 16x^2 - 5x - 75 = 0
(x-5)(4x^2+4x+15) = 0
...