i have been give the equation(adsbygoogle = window.adsbygoogle || []).push({});

f(x) = 1/(x+3) + 1/(x-1)

i am trying to find the stationary points. so

f '(x) = -1/(x+3)^2 -1/(x-1)^2

f '(x) = 0 for stationary point

then when i simplified down i get 2x^2+4x+5 = 0, which is undefinable

i looked at the derivative on the graph and it looks like it has a turning point at (-1,0).

please help, either i have made an easy mistake or somethings wrong!

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# Homework Help: Basic maths bloody problem!

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