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k4deathupon2412
2 năm trước
Cho phương trình x^3-3x^2+(2m-2)x+m-3=0 Tìm m để phương trình trên có ba nguyênm phân biệt x1,x2,x3 thỏa mãn điều kiện x1<-1<x2<x3
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