Solve
-If the Volume of a Box Is $\left( 30 x ^ { 3 } + 32 x ^ { 2 } - 30 x \right)$

Multiple Choice

Solve.
-If the volume of a box is $\left( 30 x ^ { 3 } + 32 x ^ { 2 } - 30 x \right)$ cubic centimeters, its height is $2 x$ centimeters, and its length is $( 3 x$ +5) centimeters, find its width.

A) $( 5 x + 6 ) \mathrm { cm }$
B) $( 5 x - 6 ) \mathrm { cm }$
C) $( 5 x - 3 ) \mathrm { cm }$
D) $( 5 x + 3 ) \mathrm { cm }$