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QUESTION

\huge \bf \frac{(x + y)^{2} - 4xy }{(x - y)^{2} }

ANSWER

\implies\bf \frac{(x + y)^{2} - 4xy }{(x - y)^{2} }

\implies\bf \frac{x^{2} + 2xy + {y}^{2} - 4xy }{x^{2} - 2xy + {y}^{2}} \\ \\ \implies \bf{\frac{x^{2} + 2xy - 4xy + {y}^{2} }{x^{2} - 2xy + {y}^{2}}} \\ \\ \implies \bf{\frac{ \cancel{x^{2} - 2xy + {y}^{2} }}{ \cancel{x^{2} - 2xy + {y}^{2}}}} \\ \\ \implies \bf{1}


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