Question

Please answer the question. Step by step

Answer 1

Step-by-step explanation:

$\frac{ \sqrt{5} - 2 }{ \sqrt{5} + 2 } - \frac{ \sqrt{5} + 2}{ \sqrt{5} - 2 } = \frac{ {( \sqrt{5} - 2) }^{2} - {( \sqrt{5 } + 2) }^{2} }{ {{ \sqrt{5}}^{2} - {2}^{} }^{2} } \\ \\ = \frac{5 + 4 - 4 \sqrt{5} - 5 - 4 - 4 \sqrt{5} }{5 - 4} \\ \\ = \frac{ - 8 \sqrt{5} }{1} \\ \\ = - 8 \sqrt{5}$