Question

If
${x}^{2} + \frac{1}{x {}^{2} } = 51$
...find..
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${x} - \frac{1}{ {x}^{} }$
¡¡)
${x}^{3} - \frac{1}{ {x}^{3} }$


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Answer 1

I hope it will be answer of your question