/ x \ lim |2*x - ---------| x->4+| 2| \ (-4 + x) /
Limit(2*x - x/(-4 + x)^2, x, 4)
/ x \ lim |2*x - ---------| x->4+| 2| \ (-4 + x) /
-oo
= -91346.9867549669
/ x \ lim |2*x - ---------| x->4-| 2| \ (-4 + x) /
-oo
= -91045.0132450331
= -91045.0132450331