# Thread: Help me with integration by parts

1. ## Help me with integration by parts

Please evaluate by using integration by parts.

2. Hi there, yang03265...

Using parts we can first of all integrate log of x...

Straight lines integrate up or differentiate down, so that the triangular network satisfies the product rule for differentiation. The
challenge of integration by parts is simply to fill out this product shape usefully but starting (unlike when differentiating) with one of the lower
balloons.

We can use the above result to do your integral...

Now solve the top row for $\int x \ln^2 x$

Don't integrate - balloontegrate!

Balloon Calculus: worked examples from past papers

3. Pardon me - this way much simpler, of course...

Thanks, red dog