Respostas

2014-05-11T17:59:53-03:00
13x=0+49
13x=49
X=49/13
X=3,76...
1 1 1
2014-05-11T18:03:33-03:00
Δ=196-196
Δ=0

x=14+-0/2

x¹= 7
x²=7
s=(7)



2 5 2