1 3*c + - - 1 + c c --------------- c + 1
(3*c + 1/c - 1 + c)/(c + 1)
1 + c*(-1 + 4*c) ---------------- c*(1 + c)
(1 + c*(-1 + 4*c))/(c*(1 + c))
4 + 1/c - 6/(1 + c)
1 6 4 + - - ----- c 1 + c
(-1.0 + 1/c + 4.0*c)/(1.0 + c)
1 -1 + - + 4*c c ------------ 1 + c
(-1 + 1/c + 4*c)/(1 + c)
2 1 - c + 4*c ------------ c*(1 + c)
(1 - c + 4*c^2)/(c*(1 + c))
-1 + 5*c 4 - -------- 2 c + c
4 - (-1 + 5*c)/(c + c^2)