Question

(x+1/x)² expand the following​

Answer 1

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$\frac{x+1}{x}$

$\frac{x+1}{x}$

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Answer 2

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

= 4x² - 4 + 1/x²

= 4x² - 4 + x^-2

Sum of powers = 2+0-2

= 0

Hope it helps u : )