Respostas

2014-03-24T15:34:55-03:00
Δ = 3² - 4 · 5 · 5
Δ = 9 - 100
Δ = -91
2014-03-24T15:35:31-03:00
▲ = 3^2 - 4. 5. 5
▲ = 9 - 100
▲ = - 91