Find the Derivative Of $$f ( x ) = \frac { x ^ { 3 } + 3 x ^ { 2 } - 2 x + 1 } { x ^ { 2 } + x + 5 }$$

Find the derivative of $$f ( x ) = \frac { x ^ { 3 } + 3 x ^ { 2 } - 2 x + 1 } { x ^ { 2 } + x + 5 }$$