Question

Raiz cuadrada de5 enteros +2/3)× (raiz cuadrada de 5 enteros - 2/3 )

Answer 1

$(\sqrt{5}+\frac{2}{3})(\sqrt{5}-\frac{2}{3}  )\\   (5-\sqrt{5}.\frac{2}{3} +\sqrt{5} . \frac{2}{3}-(\frac{2}{3})^{2}   )\\ 5-\frac{4}{9} \\ \frac{45-4}{9} \\ \frac{41}{9}$