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26 July, 08:18

Multiply. (j + 7) (j - 7)

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Answers (2)
  1. 26 July, 10:17
    0
    Esaey

    obviously a diference of 2 perfect suqres

    (a-b) (a+b) = a²-b²

    so

    (j+7) (j-7) = j²-7² or j²-49
  2. 26 July, 10:46
    0
    Your answer is j rase d power 2-49
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