The problem and my attempt at a solution is shown in the attached image.(adsbygoogle = window.adsbygoogle || []).push({});

The problem is that I end up with one extra x in the denominator.

So the question is: Is my expression for y'' correct and I just made a mistake somewhere (I have checked it several times), or am I missing something in the expression for y' and/or y'' ?

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# Homework Help: Problem - find second derivative

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