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sanchi2005123
2 năm trước
1)Cho x,y,z dương thỏa mãn √x+√y+√z=3 Tìm GTNN của biểu thức P=3x+4y+6z 2)Giải phương trình: √(3x-1)-√(x+2)=2x²+x-6
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