Question

A rectangular prism has a volume of 40 cm cubed. The height of the prism is 8 cm. The length is 4 cm longer than the width and the width is x cm. Find the dimensions of the prism

Answer 1

V = L,w,h
w = width
w - 2 = height
w + 4 = length
8(w + 4) = V

8(w + 4) = w(w - 2)(w + 4)

Solve for w Answer = -2