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Mathematics, 29.07.2021 06:50 lalkjlkeu9709

Câu 1: Giá trị của đa thức 2 2 B x xy y = − + 4 2 15 - 8xy - 10 tại x = -2 và y = -1 bằng?
A. 10 B. -9 C. 1 D. 9

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Câu 1: Giá trị của đa thức 2 2 B x xy y = − + 4 2 15 - 8xy - 10 tại x = -2 và y = -1 bằng?
A....
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