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21 July, 09:29

A number is squared, and the result is doubled. the final result is 72. find the original number

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  1. 21 July, 12:16
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    Let's call x the unknown number

    so the equation is: x² * 2 = 72

    let's solve for x

    x² = 36

    x = √36

    x = 6

    So the original number was 6
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