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simplybeyoutiful

  • 3 years ago

How can you tell when a quadratic equation has two identical, rational solutions? A) when the radicand is negative B) when b in the quadratic formula is greater than the radicand C) when the radicand equals zero D) when the radicand is not a perfect square

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  1. agentx5
    • 3 years ago
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    This is a definitions thing you should memorize: :-) http://en.wikipedia.org/wiki/Discriminant#Quadratic

  2. simplybeyoutiful
    • 3 years ago
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    okay

  3. agentx5
    • 3 years ago
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    FYI, "multiplicity" means it's a repeated root, in this case a double-root. Think of it as being cloned or whatever, multiple identical solutions.

  4. lgbasallote
    • 3 years ago
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    hint there are two identical roots when \[b^2 - 4ac = 0\] from the quadratic formula does that help?

  5. simplybeyoutiful
    • 3 years ago
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    yeah thanks

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