Respostas

2013-09-10T10:54:38-03:00
Usa baskara
y= ax²+bx+c
D= b²-4ac
D= 4²-4x3x0
D= 16

X1 = -b+D^1/2 = -4+4/6 = 0
X2 = -4-4/6 = -8/6
1 4 1
2013-09-10T10:55:28-03:00
3x²+4x=0
x(3x+4)=0

x=0

3x+4=0
3x=-4
x= -4/3
1 5 1