/-4 - x 5 + x\ lim |------ + -----| x->0+\ 4*x 5*x /
Limit((-4 - x)/((4*x)) + (5 + x)/((5*x)), x, 0)
-1/20
= -0.05
/-4 - x 5 + x\ lim |------ + -----| x->0-\ 4*x 5*x /
-0.05