Question

please explain this question.

if x+1/x=5, than find x/(1+x+x²)=?

Answer 1

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Answer 2

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x + 1/x = 5

$\frac{x}{1 + {x}^{2} + x } \\ = \frac{1}{ \frac{1 + {x}^{2} + x}{x} } = \frac{1}{ \frac{1}{x} + x + 1} \\ = \frac{1}{5 + 1} = \frac{1}{6}$
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