/ 2 \ lim \21 + x - 10*x/ x->3+
Limit(21 + x^2 - 10*x, x, 3)
0
= -1.31056150304535e-31
/ 2 \ lim \21 + x - 10*x/ x->3-
= -6.26050096856398e-32
-1.31056150304535e-31