Question

If
${x}^{2} + \frac{1}{ {x}^{2} } = 15$
Then find
1)
$x - \frac{1}{x}$
2)
${x}^{3} - \frac{1}{ {x}^{3} }$

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Answer 1

Answer:

see attachment

Step-by-step explanation:

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