2 6*x ----- x + 6
(6*x^2)/(x + 6)
2 6*x 12*x - -------- + ----- 2 x + 6 (x + 6)
/ 2 \ | x 2*x | 12*|1 + -------- - -----| | 2 6 + x| \ (6 + x) / ------------------------- 6 + x
/ 2 \ | x 2*x | 36*|-1 - -------- + -----| | 2 6 + x| \ (6 + x) / -------------------------- 2 (6 + x)