Respostas

2014-03-31T19:21:29-03:00
√50+√18= √68 
...........
68/2
34/2
17/17
√68 = 2√17

1 5 1
2014-03-31T19:22:03-03:00
Raiz de 50 = raiz de 25 x 2 = 5 raiz de 2
raiz de 18 = raiz de 9 x 2 = 3 raiz de 2
raiz de 50 + raiz de 18 = 5 raiz de 2 + 3 raiz de 2

logo:

8 raiz de 2