ECZ 2024 · O-Level Paper 1 — Algebra

Factorise completely 27y2 - 3x2.

  • A. 3(3y - x)(3y + x)
  • B. 3(3y - x)2
  • C. 3(9y - x2)
  • D. (3y - x)(3y + x)

Verified working — step 1

27y2 - 3x2

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Original examination question © Examinations Council of Zambia. Worked solution and commentary © G12 Titan — not to be reproduced without permission.

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