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Lpa141
2 năm trước
Tim x: a.-8/3+-1/3<x<-2/7+-5/7(nay la phep cong phan so nha) b.-5/6+8/3+29/-6<x ≤-1/2+2+5/2(nay cung vay) Tra loi day du cho minh,minh hua se vote sao cho bn nao tra loi dung nhat nhe cam on nhiu
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