The obelisk in the movie 2001 has the shape of a rectangular box with lengths $x$, $4x$, and $9x$, where $x$ is a parameter.
The volume $V$ of the obelisk is a polynomial expression in $x$ of degree and leading coefficient .
In fact, $V =$ (enter an expression in $x$).
Hint: The volume of a brick shaped object equals length times width times height.