Respostas

2013-10-25T15:16:04-02:00
X'+x"= -b/a => -(-8)/1=> 8
x'+3x"=8
4x=8
x'=8/4
x'=2
3x"= ?
2.3=x"
6=x" agora refaça o exercíco
x²-8x+2p = 1(x-2)(x-6)
x²-8x+2p = x²-8x+12
logo 2p =12
p=12/2
p=6

2 4 2