Respostas

2014-06-04T23:18:51-03:00
X²-5x+6=0
delta= -5² -4*1*6
= 25+ (-24)
=1
x= -(-5)+-raiz de 1/2*1
x=5+-1/2
x'=5+1/2
x'=6/2
x'=3
x''=5-1/2
x''=4/2
x''=2


2 2 2