/ 2\ | 3*x | lim |5 - 8*x + ----| x->-5+\ 2 /
Limit(5 - 8*x + (3*x^2)/2, x, -5)
165/2
= 82.5
/ 2\ | 3*x | lim |5 - 8*x + ----| x->-5-\ 2 /
82.5