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Equações e Inequações de 2º Grau
1 - Escolha f(x) > 0, f(x) >= 0, f(x) = 0, f(x) <= 0 ou f(x) < 0.
2 - Escolha exibir ou não o vértice. 3 - Escolha "a", "b" e "c", com "a" diferente de zero.
4 - Escolha x correspondente à opção 1.