/-8 + 2*x\ lim |--------| x->4+\ 5 + x /
Limit((-8 + 2*x)/(5 + x), x, 4)
= 0
0
= 6.45217824055183e-33
/-8 + 2*x\ lim |--------| x->4-\ 5 + x /
= -5.20396513956732e-34
6.45217824055183e-33