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12 October, 02:25

Foil (ab - 9) (ab + 8)

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Answers (2)
  1. 12 October, 02:54
    0
    (ab) ² + 8ab - 9ab - 72

    a²b² - ab - 72
  2. 12 October, 03:26
    0
    Step 1: (ab-9) (ab+8)

    Step 2: ab x ab + 8 x ab - 9 x ab - 9 x 8

    Step 3: ab2 + 8ab-9ab-72=

    Step 4: ab2 - ab-72

    solved! that how you would solve it everything will continue as normal
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