Question

(x² + 1/x²) -4 (x +1/x) +6

Answer 1

Answer:

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Step-by-step explanation:

= (x^2 + 1/x^2) + 2 (x + 1/x)

= (x^3 + x + 1/x + 1/x3) + 2

= 2x^3 + 2x + 2/x + 2/x^3