please answer the following question with a photo of solution
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Step-by-step explanation:
1.x+1/x
=√7+√6+√7-√6
=2√7.answer
2.x square+1/x square
= (x+1/x) whole square -2x×1/x
=(2√7) whole square -2
=28-2
=26. answer
3.x cueb+1/x cueb
= (x+1/x) whole cueb -3x×1/x) (x+1/x)
=(2√7) whole cueb-3×2√7
=56√7-6√7
=50√7. answer.
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