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betbolao06
2 năm trước
Câu 1: Cho phân thức $\frac{2x-4}{x^{4}-2x }$ a) Tìm điều kiện của x để giá trị phân thức được xác định b) Rút gọn rồi tính giá trị của phân thức tại x = 2012
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