Respostas

2014-07-10T19:17:05-03:00
X2 - 5x + 6= 0
Delta = (- 5)2 - 4.1.6
Delta = 25 - 24
Delta = 1

x = 5 + - raiz 1 / 2
x = 5 + - 1 / 2

x' = 5 + 1 / 2 = 6 / 2 = 3

x" = 5 - 1 / 2 = 4 / 2 = 2