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Research

Research is the labor of finding knowledge (and information), either where it was hidden, hard to reach, or unknown. Research usually means empirical research.

Generally, one can distinguish between basic research[?] and applied research[?].

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Quadratic formula

... \pm \sqrt {b^2-4ac}}{2a} </math> The term b2 – 4ac is called the discriminant of the quadratic equation, because it discriminates between three ...