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28 July, 19:16

If a product twice a number decreased by five and five times a number increased by seven is zero; find the numbers.

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Answers (2)
  1. 28 July, 20:21
    0
    Answer 5/2 and - 7/5

    Product P = (2x1-5) (5x2+7) = 0

    Solving the binomials, we get

    x1=5/2 and x2 = - 7/5
  2. 28 July, 20:42
    0
    (2x-5) (5x+7) = 0

    x=5/2 and x=-7/5 these are the 2 numbers
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