Question

if x- 1/x=4, then evaluate x²+1/x² and x⁴+1/x⁴​

Answer 1

Step-by-step explanation:

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If ,

$x - \frac{1}{x} = 4$

Then ,

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Answer 2

Step-by-step explanation:

$x {}^{2} - \frac{1}{x {}^{2} } = 14. \\ x {}^{4} + \frac{1}{x {}^{4} } = 322.$