Exercícios equação quadrática

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  1. Determine as soluções da equação
    1. $-x^{2} - 4 \, x + 5=0$ (Resposta)
    2. $4 \, x^{2} + x=0$ (Resposta)
    3. $2 \, x^{2} - 5 \, x + 2=0$ (Resposta)
    4. $-4 \, x^{2} - 6 \, x=0$ (Resposta)


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