Respostas

2013-05-27T11:45:43-03:00

delta=b²-4ac

delta=(-7)²-4.1.6

delta=49-24

delta=25

 

baskara

-b+ou-raiz de delta dividido por 2.a

x' = 7+5/2=12/2=6

x''=7-5/2=2/2=1

6 4 6