Three of these expressions are equal to the volume of the house shown. Which expression is NOT?

Question

A figure composed of a rectangular prism and a triangular prism. The rectangular prism has length h, width g, and height j. The triangular prism has length h, width g. The height of the entire figure is k.
CLEAR CHECK

g⋅h+(12⋅j⋅k)

g⋅h⋅[12(k−j)+j]

Volume of triangular prism + Volume of rectangular prism

g⋅h⋅j+12⋅g⋅h⋅(k−j)

Answer 1

The expression that is NOT equal to the volume of the house shown is:

g⋅h⋅[12(k−j)+j]