题目内容
用适当方法解下列方程:
①3x2-6x+3=0;
②3x(x-1)=2(x-1).
①3x2-6x+3=0;
②3x(x-1)=2(x-1).
①3x2-6x+3=0,
3(x-1)2=0,
x-1=0,
x1=x2=1;
②3x(x-1)=2(x-1),
3x(x-1)-2(x-1)=0,
(3x-2)(x-1)=0,
x1=
,x2=1.
3(x-1)2=0,
x-1=0,
x1=x2=1;
②3x(x-1)=2(x-1),
3x(x-1)-2(x-1)=0,
(3x-2)(x-1)=0,
x1=
2 |
3 |
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