ECZ 2015 · O-Level Paper 1 — Algebra
Given that t = √(n + 3n), express n in terms of t.
- A. n = 3t² − 1
- B. n = 3t − 1
- C. n = t² − 13
- D. n = 31 − t²
Verified working — step 1
Square both sides: t² = n + 3n, so nt² = n + 3. Then n(t² − 1) = 3 and n = …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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