___ (\/ x + 5*x, x0)
(sqrt(x) + 5*x, x0)
d / ___ \ --\(\/ x + 5*x, x0)/ dx
2 d / ___ \ ---\(\/ x + 5*x, x0)/ 2 dx
3 d / ___ \ ---\(\/ x + 5*x, x0)/ 3 dx