- #1

Goldenwind

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## Homework Statement

In preparation for an exam next week, I'm solving some of the end-of-chapter questions. There are 30 questions. I've solved a few on my own, but here's one I'm getting stuck on.

Question 2)

[tex]\int x5^x dx[/tex], problem here is I don't know how to deal with [itex]5^x[/itex].

The correct answer should be: [tex]\frac{x}{ln5}5^x - \frac{1}{(ln5)^2}5^x + C[/tex]

To avoid spamming the forum with many threads, I'll just post in this one whenever I hit an integral I'm unsure of. For now, it's just the one above.

## Homework Equations

[tex]\int u*dv = uv - \int v*du[/tex]

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