/ 2 \ lim \3 + x - 4*x/ x->3+
Limit(3 + x^2 - 4*x, x, 3)
0
= -7.97177948403636e-32
/ 2 \ lim \3 + x - 4*x/ x->3-
= -1.13943365149811e-31
-7.97177948403636e-32