Tuesday, February 19, 2013

DISCRIMINANTS

Why can the discriminant be used to confirm the number and type of solutions of a quadratic equation?
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  1. jillFebruary 19, 2013 at 10:29 AM

    The discriminant has a square root in it. If what is under the square root is a positive number, then the you will get real answers. There will be two because the +/- symbol means there are two scenarios, one where you add the square root and one where you subtract. If the number under the square root is a perfect square,...

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