Question

qual e a outra maneira de escrever raiz de raiz 18

Answer 1

Fatorando : 

18    |2
9      |3
3      |3
1

2 . 3 . 3
2 . 3²

$\mathtt{\sqrt{18}~~=~~\sqrt{2~.~3^2}~~=~~3\sqrt{2}}$