in try to use curve sketching methods to graph this equation ive come across a problem in(adsbygoogle = window.adsbygoogle || []).push({});

y''=[2(x+1)^3+2x^3]/x^3(x+1)^3

I have verified this equation for y'' is correct but solving the numerator for critical numbers by hand ?

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# Y=1/x + 1/(x+1)

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