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hgyen2809
2 năm trước
Phương trình chứa ẩn ở mẫu a) $\frac{x+1}{x-2}$ = $\frac{1}{ x^{2}-4}$ b) $\frac{x+2}{x}$ - $\frac{x^{2}+5x+4}{x(x+2)}$ = $\frac{x}{x+2}$ c) $\frac{x-1}{x}$ + $\frac{1}{x+1}$ = $\frac{2x-1}{2x^{2}+2}$ giúp mình với ạ . Mình sẽ vote 5 saoooo Trả lời chi tiết giúp minh >.<
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