Respostas

2014-08-22T19:11:18-03:00
2x² + 3x + 1 = 0

Δ = 9 - 8 = 1

x = -3 +- 1
          4

x¹ = -1
x² = -1/2
6 4 6
2014-08-22T21:14:24-03:00