Răspunsuri

Cel mai inteligent răspuns!
2014-05-05T17:21:20+03:00
Il faci cu delta
delta=1-4*1*(-1)
delta=5

x1=1+radical 5/2
x2=1-radical5/2

x^2-x-1=a(x-x1)(x-x2)=
(x-(1+r5)/2)(x-(1-r5)/2)
1 5 1