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11 December, 13:20

What 2 numbers can you add up to get 24 and multiply to get - 25?

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  1. 11 December, 14:16
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    -1 and 25 because - 1+25=24 and - 1x25=-25
  2. 11 December, 16:06
    0
    If you would like to find 2 numbers which you can add up to get 24 and multiply to get - 25, you can calculate this using the following steps:

    a + b = 24 ... b = 24 - a

    a * b = - 25 ... a * (24 - a) = - 25 ... 24 * a - a^2 = - 25 ... 0 = a^2 - 24 * a - 25

    0 = (a - 25) * (a + 1)

    1. a = 25

    2. a = - 1

    b = 24 - a

    1. b = 24 - 25 = - 1

    2. b = 24 - (-1) = 25

    The numbers you are looking for are - 1 and 25.
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