# Probability of Quadratic Questions and Real Roots

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What is the probability that the quadratic equation ax^2 + 2bx + c = 0 has real roots?

Note: you must first make sense of the question. What distribution are you putting on the variables a, b and c?

Pick one that makes sense and isn't too hard to deal with.

https://brainmass.com/math/basic-algebra/probability-quadratic-questions-real-roots-34615

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Prob. Independent

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#### Solution Summary

The probability that the quadratic equation ax^2 + 2bx + c = 0 has real roots is calculated using boundaries.

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