Simplify the Rational Expression $\frac { 64 x ^ { 4 } + 27 x } { 12 x ^ { 3 } - 63 x ^ { 2 } - 54 x }$

Short Answer

Simplify the rational expression. $\frac { 64 x ^ { 4 } + 27 x } { 12 x ^ { 3 } - 63 x ^ { 2 } - 54 x }$