ECZ 2011 · O-Level Paper 1 — Algebra
Factorise completely x2y + 2x2 - 9y - 18.
- A. (x2 - 9)(y + 2)
- B. (x - 3)(x + 3)(y + 2)
- C. (x - 3)2(y + 2)
- D. (x2 + 9)(y - 2)
Verified working — step 1
Group as x2(y + 2) - 9(y + 2) = …The 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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