# Math Help - Integration Problem

1. ## Integration Problem

Could someone help me with this integral?

$
\int\,x\sqrt{1+x}\,dx
$

2. According to the change of variables defined by $u=x+1$, the integral becomes to

$\int x\sqrt{x+1}\,dx=\int(u-1)\sqrt u\,du$

Now you can take it from there.

3. Ah, okay. Thanks for helping.

4. You're welcome.

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Cheers,
K.