Respostas

2014-05-06T19:06:22-03:00
q² - 50q = 30000
q² - 50q - 30000 = 0
Δ = (-50)² - 4(-30000)
Δ = 2500 + 120000
Δ = 122500
q = (50 + 350)/2
q = 400/2
q = 200