Respuesta :

zumar

Answer:

volume of rectangular prism =(length)(width)(height)

v=(x-4)(x+1)(3x)

[tex]v=(x^2+x-4x-4)(3x)\\v=(x^2-3x-4)(3x)\\v=3x^3-9x^2-12x[/tex]

Step-by-step explanation: