ECZ 2010 · O-Level Paper 1 — Algebra
Factorize completely 4u2/a2 - 19.
- A. (2ua- 13)(2ua+ 13)
- B. (2ua- 13)2
- C. (4ua- 19)(4ua+ 19)
- D. (2ua)(13)
Verified working — step 1
Both terms are perfect squares: 4u2/a2 = (2ua)2 and 19= …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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