/ 3 2\ lim \1 + x - x / x->oo
Limit(1 + x^3 - x^2, x, oo, dir='-')
/ 3 2\ lim \1 + x - x / x->1+
1
= 1.0
/ 3 2\ lim \1 + x - x / x->1-
oo
1.0