here's the question: the following equation has repeated roots. find the value of the constant p leaving your answer in exact form: could someone show me the method to figure that out please? thanks ps the answer is
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Hello mark Originally Posted by mark here's the question: the following equation has repeated roots. find the value of the constant p leaving your answer in exact form: could someone show me the method to figure that out please? thanks ps the answer is It's worth learning that the quadratic equation has repeated roots if and only if the discriminant is zero. That means So here: and . And when we plug these in to , we get: Grandad
You know that has one repeated root. What does this tell you about the discriminant? Nevermind, grandad ahead of me ;x
Last edited by Defunkt; Sep 7th 2009 at 06:40 AM.
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