/ 4*x \ lim |-------------| x->-1+| 2 | \-8 + x - 7*x/
Limit((4*x)/(-8 + x^2 - 7*x), x, -1)
False
= oo
/ 4*x \ lim |-------------| x->-1+| 2 | \-8 + x - 7*x/
oo
= 66.7157584683358
/ 4*x \ lim |-------------| x->-1-| 2 | \-8 + x - 7*x/
-oo
= -67.5058823529412
= -67.5058823529412