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17 November, 07:06

So the question is "5 (3x - 5) " how do I know if the answer is 15x-25 or 15x+25?

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Answers (2)
  1. 17 November, 07:13
    0
    Distribute.

    5 (3x - 5)

    5*3x - 5*5

    15x - 25
  2. 17 November, 07:15
    0
    Positive * positive = positive

    Negative * positive = negative

    negative * negative = positive.

    So in your problem,

    5 * - 5 = - 25

    5 (3x - 5) =

    15x - 25
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