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Toán Lớp 8: Tìm Min: `B = x^2 + 2y^2 + 3z^2 – 2xy + 2xz – 2x – 2y – 8z + 2000`

Home/ Toán Lớp 8: Tìm Min: `B = x^2 + 2y^2 + 3z^2 – 2xy + 2xz – 2x – 2y – 8z + 2000`

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