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13 August, 09:14

The square of a positive number decreased by twice the number is 48. Find the number

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  1. 13 August, 09:28
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    X^2=2x+48

    x^2-2x-48=0

    (x-8) (x+6) = 0

    x=8 x=-6

    x must be negative so x=-6

    check

    36=48+-12

    36=36
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