ECZ 2025 · GCE Paper 1 — Algebra

Factorise completely 2ab - 3b + 10a - 15.

  • A. (2a + 3)(b - 5)
  • B. (a - 3)(2b + 5)
  • C. (2a - 3)(b + 5)
  • D. (2a - 3)(b - 5)

Verified working — step 1

2ab - 3b + 10a - 15

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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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