/c - 2 c \ |----- - -----|*(c + 2) \c + 2 c - 2/ ----------------------- 2 - 3*c
(2.0 + c)*((-2.0 + c)/(2.0 + c) - c/(-2.0 + c))/(2.0 - 3.0*c)
2 (-2 + c) - c*(2 + c) --------------------- (-2 + c)*(2 - 3*c)
2 (-2 + c) - c*(2 + c) --------------------- (-2 + c)*(2 - 3*c)