ECZ 2019 · O-Level Paper 1 — Algebra
Factorise completely 4ab + 6ac - 6bd - 9cd.
- A. (2a - 3d)(2b - 3c)
- B. (2a - 3d)(2b + 3c)
- C. (2a + 3d)(2b + 3c)
- D. (4a - 6d)(b + c)
Verified working — step 1
4ab + 6ac - 6bd - 9cdThe full step-by-step working and final answer are included with Premium — checked against ECZ marking standards.
Original examination question © Examinations Council of Zambia. Worked solution and commentary © G12 Titan — not to be reproduced without permission.
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