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Algebra

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Which is the easiest way to figure a quadratic equation; graphing, quadratic formula, completing a square and factoring?

  • Algebra - ,

    Quadratic formula, unless it can be factored easily by inspection. Graphing takes too long, but is sometimes the only convenient way to solve cubic and higher order equations.

  • percentage - ,

    find the number which when increased by 30% becomes 39

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