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17 April, 09:38

Two numbers that multiply to minus 48 and add up to 13?

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  1. 17 April, 09:42
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    A * b = - 48

    a + b = 13 ... a = 13 - b

    b (13 - b) = - 48

    -b^2 + 13b = - 48

    -b^2 + 13b + 48 = 0

    (-b-3) (b - 16) = 0

    -b - 3 = 0

    -3 = b

    b - 16 = 0

    b = 16

    ur numbers are : 16 and - 3
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