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16 September, 22:19

The sum of a number and twice its reciprocal is 27/5. Find

the number.

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  1. 16 September, 22:40
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    x, reciprocal = 1/x

    x+2 (1/x) = 27/5

    x+2/x=27/5

    x^2+2=27/5*x

    x^2-27/5*x+2=0

    (x-5) (x-2/5) = 0

    x=5, 2/5
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