x2-6x+3=0用分解因式法X2-3X+1=0X2-2X=4

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x2-6x+3=0用分解因式法X2-3X+1=0X2-2X=4
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x2-6x+3=0用分解因式法X2-3X+1=0X2-2X=4
x2-6x+3=0用分解因式法
X2-3X+1=0
X2-2X=4

x2-6x+3=0用分解因式法X2-3X+1=0X2-2X=4
x^2-6x+3=0
x^2-6x+9-6=0
(x-3)^2-6=0
(x-3+根号6)(x-3-根号6)=0
x^2-3x+1=0
x^2-3x+9/4-5/4=0
(x-3/2)^2-5/4=0
(x-3/2+根号5/2)(x-3/2-根号5/2)=0
x^2-2x=4
x^2-2x+1=5
(x-1)^2=5
(x-1)^2-5=0
(x-1+根号5)(x-1-根号5)=0