ECZ 2010 · O-Level Paper 1 — Algebra
Factorize completely 4u2/a2 - 19.
- A. (2ua - 13)(2ua + 13)
- B. 2ua - 132
- C. (4ua - 19)(4ua + 19)
- D. (2ua)(13)
Verified working — step 1
Both terms are perfect squares with a minus between them - 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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