/ 3 3 2\ lim |- - - x + 3*x | x->2+\ 2 /
Limit(-3/2 - x^3 + 3*x^2, x, 2)
5/2
= 2.5
/ 3 3 2\ lim |- - - x + 3*x | x->2-\ 2 /
2.5