/ 3 \ lim \x *(1 + x)/ x->-1+
Limit(x^3*(1 + x), x, -1)
0
= -3.65183494386029e-30
/ 3 \ lim \x *(1 + x)/ x->-1-
= -5.00815780248408e-31
-3.65183494386029e-30