Perform the Indicated Operation and Express Your Answer in Simplest $$\frac { 27 } { x ^ { 2 } + 3 x - 10 } - \frac { 4 } { x ^ { 2 } + 6 x - 16 }$$

Short Answer

Perform the indicated operation and express your answer in simplest form. $$\frac { 27 } { x ^ { 2 } + 3 x - 10 } - \frac { 4 } { x ^ { 2 } + 6 x - 16 }$$ Please enter your answer as one fraction with the denominator factored completely.