Respostas

2013-08-08T15:31:30-03:00
X= -b/2a (b= -4; a= 2)
y= - delta/4a (delta= b^2 - 4ac) (c=5)

x= -(-4)/4= 1
y= - [16 - (4.2.5)]/8= - (-24/8)= 3

Resposta: C (1;3)
14 3 14