Lim(х→1)=5х-5/4х^2+х-5
Lim=5*1-5/4*1^2+1-5 Lim=5-5/4+1-5=1-5/4=4/4-5/4= =-1/4
= Lim(х→1) {5(х-1)/4(x-1)(x+5/4)}= = Lim(х→1) {5/(4х+5)}=5/9