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schoulten
@schoulten
October 2020
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[15 pontos]
{a,b} é o conjunto-verdade da equação:
a. x² + (a - b)x + ab = 0
b. x² - (a + b)x + ab = 0
c. x² - (a + b)x - ab = 0
d. 2x² - (a + b)x + ab = 0
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Tentei tirar as raízes de todas mas nenhuma bateu, alguém ajuda?
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