/ 3 2\ |x - 8*x | lim |---------| x->8+\ -8 + x /
Limit((x^3 - 8*x^2)/(-8 + x), x, 8)
= 64
64
/ 3 2\ |x - 8*x | lim |---------| x->8-\ -8 + x /
64.0