Ajutati-ma va roggg!

45 lei pret initial
reducere de 15%=>45-15*45/100=45-3*9/4=45-6,75=38,25 lei
x^2-5x+6=0
delta=25-24=1=>x1=(5+1)/2=6/2=3
x2=(5-1)/2=4/2=2