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thunguyen1974
2 năm trước
Cho phương trình:1/2x*2+mx+1/2m*2-m-1=0 Tìm m để phương trình có 2 nghiệm x1,x2 sao cho: a) /x1-x2/=5 b) x1+2x2=1 c)hai nghiệm cùng dấu âm Chứ thích:* là mũ,/ / là dấu giá trị tuyệt đối Gấp,giúp mình với, mình tick 5 sao cho,cảm ơn nhiều
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