Respostas

2014-07-10T17:53:31-03:00
(a2 + 2ab + b2) + (a2 + 2ab + b2) / a2 - b2
(a + b) (a - b) + (a + b) (a - b) / (a + b) (a - b)
9.3 + 9.3 / 9.3
27 + 27 / 27
54 / 27
2
1 5 1