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Mathematics, 19.09.2021 23:20 Esan1478

tìm m để phương trình x^{2} + 7x + m -3 có 2 nghiệm dương phân biệt thỏa mãn 2x_{1} - x_{2} = 5

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tìm m để phương trình + 7x + m -3 có 2 nghiệm dương phân biệt thỏa mãn - = 5...
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