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21 August, 17:51

If eleven is added to the square of a number, the results is sixty. find all such numbers

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  1. 21 August, 18:50
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    x^2 + 11 = 60 {11 is added to the square of a number to get 60}

    x^2 = 49 {subtracted 11 from both sides}

    x = 7 or - 7 {took square root of both sides}

    the numbers are 7 and - 7
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