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Use the discriminant to determine how many real-number solutions the equation has.
v2 - 7v + 5 = 0

  • math -

    You must mean the quadratic equation,
    v^2 -7v +5 = 0

    The discriminant is b^2 - 4ac = 49 - 20 = 29

    Since this is positive, there are two real answers, [7 +/- sqrt29]/2
    which are 6.1936 and 0.8074

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