分解因式:x2-2x= .
考点分析:
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如图所示,AB∥CD,∠E=27°,∠C=52°,则∠EAB的度数为( )
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A.25°
B.63°
C.79°
D.101°
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已知:如图,在△ABC中,∠ADE=∠C,则下列等式成立的是( )
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A.
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=
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B.
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=
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C.
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=
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D.
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=
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如图,已知正方形ABCD的边长为2,如果将线段BD绕着点B旋转后,点D落在CB的延长线上的D′处,那么A D′为( )
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A.
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B.2
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C.
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D.2
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如图,若△ABC≌△ADE,则下列结论不正确的是( )
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A.AB=AD
B.AC=AD
C.AC=AE
D.BC=DE
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若双曲线y=
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与直线y=2x+1的一个交点的横坐标为-1,则k的值为( )
A.-1
B.1
C.-2
D.2
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