Respostas

2013-08-25T21:14:41-03:00
2x²+36=2x+36
2x²-2x+36-36=0
2x²-2x=0
(Delta)= b²-4ac
(Delta)= (-2)²-4.2.0
(Delta)= 4
x= 2 +- 2 / 2
x¹= 4/2 = 2
x¹¹= 0/2 = 0