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Math Help - Help Within Partial Integration

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    Help Within Partial Integration

    ∫2x-3/(9+x^2)dx



    I don't know why, but this problem is giving me some trouble, can anyone help?
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  2. #2
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    Quote Originally Posted by john0513 View Post
    ∫2x-3/(9+x^2)dx



    I don't know why, but this problem is giving me some trouble, can anyone help?
    Slip it up and consider two different problems

    \int \frac{2x}{x^2 + 9}\,dx - 3 \int \frac{1}{9+x^2}\,dx

    and use a (1) u -substitution and (2) trig substitution
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