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tranthithuhuongtdn
2 năm trước
Bài 3: Phép chia đa thức 3x5 + 5x4 – 1 cho đa thức x2 + x + 1 được đa thức thương là: A. 3x3 – 2x2 – 5x + 3 B. 3x3 + 2x2 – 5x + 3 C. 3x3 – 2x2 – x + 3 D. 2x – 4
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