ECZ 2017 · O-Level Paper 1 — Algebra
Factorise completely ax2y − 4ay3.
- A. ay(x − 4y)(x + y)
- B. ay(x − 2y)(x + 2y)
- C. a(x2y − 4y3)
- D. ay2(x2 − 4y)
Verified working — step 1
"Factorise completely" means keep going until nothing more factorises. Pull out the common factor first, then look for a difference of two squares.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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