Find the Derivative of the Following Function $y = \ln \left( 4 x ^ { 3 } - 9 x \right) - 3 x$

Multiple Choice

Find the derivative of the following function. $y = \ln \left( 4 x ^ { 3 } - 9 x \right) - 3 x$

A) $\frac { 12 x ^ { 2 } - 9 x } { x \left( 4 x ^ { 2 } - 9 \right) } - 3$
B) $\frac { 1 } { x \left( 4 x ^ { 2 } - 9 \right) } - 3$
C) $\frac { 12 x ^ { 2 } - 9 } { x \left( 4 x ^ { 2 } - 9 \right) } - 3$
D) $\frac { 12 x ^ { 2 } } { x \left( 4 x ^ { 2 } - 9 \right) } - 3$
E) $\frac { 1 } { x \left( 4 x ^ { 2 } - 1 \right) } - 3$