Question

Pls tell answer fastttt

Answer 1

Answer:

$\huge\underline{ \underline{ \red{your \: \: answer}}}$

$\sf\green{ \frac{ \sqrt{5} - 2 }{ \sqrt{5} + 2 } \times \frac{ \sqrt{5} - 2}{ \sqrt{5} + 2 } } \\ \sf\green{ = > \frac{ { (\sqrt{5} - 2})^{2} }{ { (\sqrt{5} + 2)}^{2} } } \\ \sf\green{ = > \frac{ { (\sqrt{5)} }^{2} + {2}^{2} - 2 \times \sqrt{5 } \times 2}{ { \sqrt{5} }^{2} + {2}^{2} + 2 \times \sqrt{5} \times 2} } \\ \sf\green{ = > \frac{5 + 4 - 4 \sqrt{5} }{5 + 4 + 4 \sqrt{5} } } \\ \sf\green{ = > \frac{9 - 4 \sqrt{5} }{9 + 4 \sqrt{5} } } \\ \sf\pink{ = > \frac{(9 - 4 \sqrt{5} )(9 - 4 \sqrt{5} )}{(9 + 4 \sqrt{5})(9 - 4 \sqrt{5} ) } } \\ \sf\pink{ = > \frac{ {(9 - 4 \sqrt{5} )}^{2} }{ {9}^{2} - {4 \sqrt{5} }^{2} } } \\ \sf\pink{ = > \frac{81 + 80 - 70 \sqrt{5} }{81 - 80} } \\ \sf\pink{ = > 161 - 70 \sqrt{5} }$

$\large\boxed{ \fcolorbox{pink}{purple}{hope \: it \: help \: you}}$