/ -1 + x \ lim |-------------| x->1+| 2 | \-1 + x + 4*x/
Limit((-1 + x)/(-1 + x^2 + 4*x), x, 1)
= 0
/ -1 + x \ lim |-------------| x->1+| 2 | \-1 + x + 4*x/
0
= 1.84241089338683e-28
/ -1 + x \ lim |-------------| x->1-| 2 | \-1 + x + 4*x/
0
= 3.74540546316656e-35
= 3.74540546316656e-35