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nguyenvantanbg97
2 năm trước
B1: Phân tích đa thức thành nhân tử 1. x^2 - 1 2. 16 - x^2 3. 9x^2 - 1 4. x^2 - 2x + 1 5. 16 - 8x +x^2 6. 8 - x^3 7. x^2 - 3x 8. -x^2 + 2x 9. 3x^2 - 6x
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