Respostas

2014-08-06T23:13:42-03:00
Delta = (-9) ^2 -4.5.-2
= 81 - 40
= 41

x' = 9 + 7 16
----- = ---- = 1,6
10 10



x"= 9 - 7 2
----- = ---- = 0,2
10 10