Question

д е сократите дроби Пожалуйста

Answer 1

Во втором уравнение будет так: $frac{ sqrt{5}( sqrt{5}-1)}{ sqrt{5} }= sqrt{5}-1$

Answer 2

$frac{e^2-2}{e-sqrt{2}}=frac{e^2-(sqrt{2})^2}{e-sqrt{2}}=frac{(e-sqrt{2})(e+sqrt{2})}{e-sqrt{2}}=e+sqrt{2}$


$frac{5-sqrt{5}}{sqrt{5}}=frac{(sqrt{5})^2-sqrt{5}}{sqrt{5}}=frac{sqrt{5}(sqrt{5}-1)}{sqrt{5}}=sqrt{5}-1$