I remember back when I did a lot of quadratic equations, occasionally I had to find an unknown coefficient and if I remember correctly, generally I had to use the discriminant which gave me another quadratic which I could then use to solve for the coefficient.(adsbygoogle = window.adsbygoogle || []).push({});

My question is why does this work? Why can the discriminant be used in this way?

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# How does the discriminant work (quadratics)

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