3x²-6x+2=0
x²-2x+2/3=0
x²-2x+4-4+2/3=0
(x-2)²-10/3=0
x-2=±√(10/3)=±(√30)/3我这答案是1正负根号3/3配方中出现错误，现更正3x²-6x+2=0x²-2x+2/3=0x²-2x+1-1+2/3=0(x-1)²-1/3=0x-1=±√(1/3)x=1±(√3)/3