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已知方程x2+kx-6=0的一个根是2,则它的另一个根为( ) A.1 B.-2...
已知方程x2+kx-6=0的一个根是2,则它的另一个根为( )
A.1
B.-2
C.3
D.-3
考点分析:
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方程x
2-2x=0的根是( )
A.x=0
B.x=2
C.x=0或x=2
D.x=0或x=-2
查看答案