mary-allen_60bc0712a3dca
mary-allen_60bc0712a3dca
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Achando os zeros da fução. (delta) = (3)^2 - 4(2)(-2) = 9 + 16 = 25 x' = (-3 + 25^(1/2))/2(2) = (-3 + 5)/4 = 1/2 x'' = (-3 - 25^(1/2))/2(2) = (-3 - 5)/4 = -2 Fazendo o estudo do sinal ++++++o------------o+++++++++ ...........-2....…