1/2(x-2)²+x-2=02(x-3)²+(3x-x)²=01/2x(x-2=x²-4x+4
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1/2(x-2)²+x-2=02(x-3)²+(3x-x)²=01/2x(x-2=x²-4x+4
1/2(x-2)²+x-2=0
2(x-3)²+(3x-x)²=0
1/2x(x-2=x²-4x+4
1/2(x-2)²+x-2=02(x-3)²+(3x-x)²=01/2x(x-2=x²-4x+4
1/2(x-2)²+x-2=0
(x-2)²+2(x-2)=0
(x-2)(x-2+2)=0
x(x-2)=0
x1=0 x2=2
2(x-3)²+(3x-x)²=0
2(x-3)²+x²(x-3)²=0
(x-3)²(x²+2)=0
(x-3)²=0
x=3
1/2x(x-2)=x²-4x+4
1/2x(x-2)=(x-2)²
2(x-2)²-x(x-2)=0
(x-2)[2(x-2)-x]=0
(x-2)(2x-4-x)=0
(x-2)(x-4)=0
x1=2 x2=4
这道题出错了吧
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2(x^2 - 6x +9) + 4x^2=0
2x^2 -12x +18 +4x^2=0
6x^2 -12x + 18=0
x^2 -2x + 3=0
(x-3)(x+1)=0
x=3 or x=-1
1/2*(x-2)²+(x-2)=0
(x-2)*[1/2*(x-2)+1]=0
(x-2)*1/2*x=0
x(x-2)=0
x=0,或x=2
2(x-3)²+(3x-x²)²=0
2(x-3)²+x²(x-3)²=0
(2+x²)(x-3)²=0
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1/2*(x-2)²+(x-2)=0
(x-2)*[1/2*(x-2)+1]=0
(x-2)*1/2*x=0
x(x-2)=0
x=0,或x=2
2(x-3)²+(3x-x²)²=0
2(x-3)²+x²(x-3)²=0
(2+x²)(x-3)²=0
所以x-3=0,所以x=3
1/2*x(x-2)=(x-2)²
x(x-2)=2(x-2)²
2(x-2)²-x(x-2)=0
(x-2)(2x-4-x)=0
(x-2)(x-4)=0
x=2,或x=4
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