/ 2\ lim \-3 + x + x / x->oo
Limit(-3 + x + x^2, x, oo, dir='-')
/ 2\ lim \-3 + x + x / x->-1+
-3
= -3.0
/ 2\ lim \-3 + x + x / x->-1-
oo
-3.0