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If -5 is a root of the quadratic equatio...

If -5 is a root of the quadratic equation `2x^(2)+Px-15=0` and the quadratic equation `px^(2)+px+k=0` has equal roots, find k.

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ZEN PUBLICATION-QUADRATIC EQUATIONS-ZEN ADDITIONAL QUESTIONS (LONG ANSWER [LA] TYPE QUESTIONS)
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