ECZ 2015 · O-Level Paper 1 — Index Notation
Find the value of n, if 4ⁿ = 2² × 4².
- A. 6
- B. 4
- C. 3
- D. 2
Verified working — step 1
2² = 4, so 4ⁿ = 4 × 4² = 4³. Equating exponents gives 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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