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12 July, 13:37

The product of two consecutive even positive integers is 10 more than seven times the larger. find the integers?

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  1. 12 July, 14:02
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    2 consecutive even numbers ... x and x + 2

    x (x + 2) = 7 (x + 2) + 10

    x^2 + 2x = 7x + 14 + 10

    x^2 + 2x = 7x + 24

    x^2 + 2x - 7x - 24 = 0

    x^2 - 5x - 24 = 0

    (x - 8) (x + 3) = 0

    x - 8 = 0

    x = 8

    x + 3 = 0

    x = - 3 ... not this one because it is negative

    x = 8

    x + 2 = 8 + 2 = 10

    so ur 2 consecutive even numbers are 8 and 10
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