if the product of two consecutive even number is 224 find the number​

Question

if the product of two consecutive even number is 224 find the number​

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Thành Công 2 months 2021-07-28T08:11:33+00:00 2 Answers 1 views 0

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    2021-07-28T08:12:40+00:00

    Let the first consecutive even number be x. The second one is going to be two more than x, and as such can be written as (x+2).

    The product of these numbers, x and (x+2), is 224:

    x(x+2)=224

    x²+2x=224

    x²+2x-224=0

    (x+16)(x-14) =0 (could also use ‘-b’ method)

    x=-16 or 14

    Therefore, (x+2) = -14 or 16

    Therefore, the numbers are either 14 and 16, or -14 and -16

    0
    2021-07-28T08:12:41+00:00

    Answer:

    Let one integer be x, and the other be (x+2)

    x(x+2)=224

    x2+2x-224=0

    (x+16)(x-14) =0

    x=-16 or 14

    so x+2 = -14 or 16

    So the integers are either 14 and 16 or -14 and -16.

    Step-by-step explanation:

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )