Respostas

2014-08-26T18:32:14-03:00
A-3.B será

(6,3.4,8+7,12.6,3)-(3,4.0,5-0,8.1,6).(3,4.0,5-0,8.1,6)
(30,24+44,856)-(1,7-1,28).(1,7-1,28)
75,096-0,42.0,42
75,096-0,1764
74,9196

espero ter ajudado
2014-08-26T18:38:27-03:00
30,24+44,85-10,2.(-0,3).16
=124,05