/ 4 5 \ lim |x + x + -----| x->-1+\ 1 + x/
Limit(x + x^4 + 5/(1 + x), x, -1)
oo
= 754.980394436814
/ 4 5 \ lim |x + x + -----| x->-1-\ 1 + x/
-oo
= -754.97986814026
754.980394436814