Respostas

2014-03-27T00:28:47-03:00
Deixamos na forma geral
2x²-3x = 6-4x
2x²+x-6 = 0
Agora, aplicamos Bháskara
Δ = b² -4ac
Δ = 1² - 4·2·(-6)
Δ = 49

x=-b+-√Δ / 2a
x= -1+-√49 / 2·2
x = -1 +- 7 / 4
x' = -1+7/4 = 6/4 = 3/2
x" = -1-7/4 = -8/4 = -2
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