Respostas

2013-08-06T15:43:08-03:00
Distribui
-9y + 10y - 4 = 0
y = 4
A melhor resposta!
2013-08-06T15:43:44-03:00
-9y + 2.(5y - 2) = 0
-9y + 10y -4 = 0
y - 4 = 0
y = 4
1 5 1