Which is the correct way/ method/Formula to find the discriminant of a quadratic equation in 3 variables?
Also, how to conclude that, whether this f is reducible or irreducible?
Some one knows this please help
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Check this link hope this works : http://mathworld.wolfram.com/QuadraticCurveDiscriminant.html – Sujit Bhattacharyya Mar 24 '18 at 12:11