Mathematics
Mathematics, 13.07.2021 06:10, jasminemarie610

Please help in the math \frac{x + y}{x - y}  +   \frac{x - y}{x + y}  -   \frac{2( {x}^{2} -  {y}^{2})  }{ {x}^{2}  -  {y}^{2} }

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