/ 2 \ |x - 2*x| lim |--------| x->2+\-4 + 2*x/
Limit((x^2 - 2*x)/(-4 + 2*x), x, 2)
= 1
1
= 1.0
/ 2 \ |x - 2*x| lim |--------| x->2-\-4 + 2*x/
1.0