Factorise 8x^3 - 36x^2 + 54x - 27.

  1. (2x - 3)(4x^2 + 9)
  2. (8x - 27)(x^2 + 1)
  3. (2x - 3)^3
  4. (2x + 3)^3
Answer

C) (2x - 3)^3

It matches a^3 - 3a^2b + 3ab^2 - b^3 = (a - b)^3 with a = 2x, b = 3. SLO M-09-A-18 · Understanding

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