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(2005•绍兴)化简得A.2B.-4x+4C.-2D.4x-4
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(2005•绍兴)化简
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAIIAAAAeCAYAAADgp8bFAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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)
得( )
A.2
B.-4x+4
C.-2
D.4x-4
相关试题
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(2005•绍兴)化简
得( )
A.2
B.-4x+4
C.-2
D.4x-4
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(2005•绍兴)化简
得( )
A.2
B.-4x+4
C.-2
D.4x-4
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(2005•江苏模拟)抛物线y=x2-4x的对称轴是( )
A.x=-2
B.x=4
C.x=2
D.x=-4
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(2005•金华)如果一元二次方程x2-4x+2=0的两个根是x1,x2,那么x1+x2等于( )
A.4
B.-4
C.2
D.-2
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(2005•辽宁)用配方法解一元二次方程x2-4x-1=0,配方后得到的方程是( )
A.(x-2)2=1
B.(x-2)2=4
C.(x-2)2=5
D.(x-2)2=3
-
化简
得( )
A.2
B.-4x+4
C.-2
D.4x-4
-
化简
-(
)2得( )
A.2
B.-4x+4
C.-2
D.4x-4
-
化简
得( )
A.2
B.-4x+4
C.-2
D.4x-4
-
化简
得( )
A.2
B.-4x+4
C.-2
D.4x-4
-
化简
得( )
A.2
B.-4x+4
C.-2
D.4x-4