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5 January, 17:18

Expand: (b + 2) (b - 4)

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Answers (2)
  1. 5 January, 17:34
    0
    (b+2) (b-4)

    b x b = b^2

    b x 2 = 2b

    b x - 4 = - 4b

    2 x - 4=-8

    b^2+2b-4b-8 = b^2-2b-8
  2. 5 January, 17:47
    0
    I believe the answer is b^2-2b-8
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