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30 July, 20:54

Multiply: (x - 9) (x + 9)

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Answers (2)
  1. 30 July, 21:10
    0
    x^2-81

    Step-by-step explanation:

    (x-9) (x+9)

    x*x = x^2

    -9*9 = - 81

    Add values together.

    x^2-81
  2. 30 July, 21:19
    0
    Answer:x

    x^2-81
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