- #1

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I am not sure where to start. I have a feeling that I need to subsitute twice, but I just don't know what to use first. Any help is appreciated.

- Thread starter laker88116
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- #1

- 57

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I am not sure where to start. I have a feeling that I need to subsitute twice, but I just don't know what to use first. Any help is appreciated.

- #2

Pyrrhus

Homework Helper

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Try

[tex] \int \frac{x dx}{x^{2}+9} + 9 \int \frac{dx}{x^{2}+9} [/tex]

[tex] \int \frac{x dx}{x^{2}+9} + 9 \int \frac{dx}{x^{2}+9} [/tex]

- #3

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- #4

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Yea, I solved it, thank you for the help.

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