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Math Help - Algebra problem... drawing a blank

  1. #1
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    Algebra problem... drawing a blank

    I need to break down 10/(((w^2)+100)((w^2)+4)) into (A/((w^2)+100))+(B/((w^2)+4)) form. I am completely drawing a blank, any help would be great thanks.
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  2. #2
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    Quote Originally Posted by blktip33 View Post
    I need to break down 10/(((w^2)+100)((w^2)+4)) into (A/((w^2)+100))+(B/((w^2)+4)) form. I am completely drawing a blank, any help would be great thanks.
    Fourier Transforms you can do, but partial fractions you cannot .

    The mistake you are making is the the denominator is a quadradic not a linear polynomial.

    Thus,
    10/((w^2+100)(w^2+4)) = (Aw+B)/(w^2+100) + (Bw+C)/(w^2+4)
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  3. #3
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    haha i know... partial fractions is one of those thing i have to relearn every year... thanks again!
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