/ 2 \ | -12 + x | lim |--------------| x->4+| 2 | \-32 + x + 4*x/
Limit((-12 + x^2)/(-32 + x^2 + 4*x), x, 4)
False
= oo
/ 2 \ | -12 + x | lim |--------------| x->4+| 2 | \-32 + x + 4*x/
oo
= 50.9724214009928
/ 2 \ | -12 + x | lim |--------------| x->4-| 2 | \-32 + x + 4*x/
-oo
= -49.6946438431806
= -49.6946438431806