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Math Help - rational expression

  1. #1
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    rational expression

    find any values for which the rational expression is undefined

    4x+5 / x^2+3x+2
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  2. #2
    Senior Member eumyang's Avatar
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    Assuming you mean
    \dfrac{4x+5}{ x^2+3x+2}

    ...this expression would be undefined if the denominator equals 0:
     x^2+3x+2 = 0

    Can you take it from here?
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