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7 August, 02:36

Find two numbers whose sum is 55 and whose product is 646

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  1. 7 August, 05:07
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    17 and 38

    Step-by-step explanation:

    x + y = 55 ... x = 55 - y

    x * y = 646

    y (55 - y) = 646

    55y - y^2 = 646

    y^2 - 55y + 646 = 0

    (y - 17) (y - 38) = 0

    y - 17 = 0 y - 38 = 0

    y = 17 y = 38

    ur numbers are 17 and 38
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