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uyen1502
1 năm trước
Cho phương trình: (4+$m^{2}$)x-8x+2-m=0 với ẩn số x. a) Giải phương trình khi m = -5. b) Tìm điều kiện của m để phương trình có một nghiệm duy nhất. c) Tìm m để phương trình có nghiệm x= . $\frac{1}{4}$
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