/ 2\ | x + x | lim |-------| x->12+\-12 + x/
Limit((x + x^2)/(-12 + x), x, 12)
False
= oo
oo
= 23581.0066225166
/ 2\ | x + x | lim |-------| x->12-\-12 + x/
-oo
= -23531.0066225166
23581.0066225166