Răspunsuri

2014-11-11T16:15:28+02:00
X-8√x+12=0
(√x)²-8√x+12=0
Δ=64-4·12=16
x₁=(8+4)/2=6
x₂=(8-4)/2=2
2014-11-11T16:21:19+02:00