Blackfriars is one of the constituent colleges of the University of Oxford in the United Kingdom. Its status is that of a "permanent private hall", and it is located in St. Giles'. It is a centre for the study of theology, and admits both men and women.
... \sqrt {b^2-4ac}}{2a}
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The term b2 – 4ac is called the discriminant of the quadratic equation, because it discriminates between three qualitatively ...