/ 3 2\ lim \-7 + 3*x + 4*x / x->1+
Limit(-7 + 3*x^3 + 4*x^2, x, 1)
0
= 4.53614323107595e-31
/ 3 2\ lim \-7 + 3*x + 4*x / x->1-
= -2.97120940297987e-30
4.53614323107595e-31