/ 2 \ | 6 + x - 5*x | lim |--------------| x->1+| 2 | \20 + x - 12*x/
Limit((6 + x^2 - 5*x)/(20 + x^2 - 12*x), x, 1)
= 2/9
/ 2 \ | 6 + x - 5*x | lim |--------------| x->1+| 2 | \20 + x - 12*x/
2/9
= 0.222222222222222
/ 2 \ | 6 + x - 5*x | lim |--------------| x->1-| 2 | \20 + x - 12*x/
2/9
= 0.222222222222222
= 0.222222222222222