3x²-1=6x
3x²-6x=1
x²-2x=1/3
x²-2x+1=1/3+1
(x-1)²=4/3
x-1=2根号3/3 x-1=-2根号3/3
x1=1+2根号3/3 x2=1-2根号3/3
3x^2-1=6x 用配方法解一元二次方程,多谢Ｏ(≧∇≦)Ｏ
3x²-1=6x
3x²-6x=1
x²-2x=1/3
x²-2x+1=1/3+1
(x-1)²=4/3
x-1=2根号3/3 x-1=-2根号3/3
x1=1+2根号3/3 x2=1-2根号3/3