Respostas

2014-05-21T18:16:34-03:00
81 | 3
27 | 3
  9 | 3
  3 | 3
  1 | 

√81 = √ 3 x 3 x 3 x 3
√81 = √9 x √9
√81 = 3 x 3
√81 = 9

16 | 2
  8 | 2
  4 | 2
  2 | 2
  1 | 

√16 = √ 2 x 2 x 2 x 2
√16 = √4 x √4
√16 = 2 x 2
√16 = 4 
1 5 1