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## Homework Statement

∫9(ln9x)

^{2}dx

## Homework Equations

## The Attempt at a Solution

u=(ln9x)

^{2}dv=9dx

du=2(ln9x)*1/xdx v=9x

After all my work I get:

9x(ln9x)

^{2}-18(ln9x)+18x

Webassign tells me I'm wrong, but I have worked it 3 times to the same answer.

Please help me.

Neil