Respostas

2014-07-18T09:31:39-03:00
√18 = √(3²x2) = √3² x √2 = 3 x √2  = 3x 1,41 = 4,2

18|2
9|3
3|3
1

18 = 2 x 3²

√2 ≈ 1,41 
1 3 1