B
beconvaolop


Giải,biện luận pt
[TEX]\frac{bx-1}{x-1}+\frac{a}{x+1}=\frac{b(x^2+1)}{x^2-1}[/TEX] ẩn x
[TEX]\frac{bx-1}{x-1}+\frac{a}{x+1}=\frac{b(x^2+1)}{x^2-1}[/TEX] ẩn x
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