关于x的一元二次方程x2-(k+1)x+k-2=0的根的情况是( ) A.有

关于x的一元二次方程x2-(k+1)x+k-2=0的根的情况是(  )

 A.有两个相等的实数根  B. 有两个不相等的实数根

C.没有实数根  D.无法判断

 

答案

B

解析:略

 

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