$\displaystyle y= \frac{x\sqrt{x+1}}{(2 + x^4)}$

$\displaystyle lny= ln \frac{x\sqrt{x+1}}{(2 + x^4)}$

$\displaystyle lny= ln({x\sqrt{x+1}) - ln{(2 + x^4)}$

Is that correct so far? And any advice for what to do after...I've never done a question like this and it's confusing me!