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1 markDifficulty: Easy

The factors of x2 − 9 are:

  1. a(x − 3)(x − 3)
  2. b(x + 3)(x − 3)
  3. c(x + 9)(x − 1)
  4. d(x + 3)(x + 3)

Original Khojo Papers practice question — not from a past board paper.

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