x + 1/x =5/2 solve the same
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x + 1/x = 5/2
(x^2 + 1)/x = 5/2
2x^2 + 2 = 5x
2x^2 - 5x + 2 = 0
2x^2 - 4x - x + 2 = 0
2x(x-2) - 1(x-2) = 0
(x-2)(2x-1) = 0
➡x = 2 and x = 1/2
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