lim x->1 (x^3 - 3x +2)/(x^4 - 4x + 3) = ?

I tried with L'Hospital's rule but it seems it doesn't work (it still gives me 0/0... Maybe I didn't apply it well?). Any suggestions?

Thanks in advance (Wink)!

[Sorry if it's a dumb question, but I am not very good at math...(Lipssealed)]