ECZ 2021 · O-Level Paper 1 — Index Notation
Given that √2 = 2x, find the value of x.
- A. 2
- B. -0.5
- C. 12
- D. 1
Verified working — step 1
A square root IS a power: the index 12. Matching powers of the same base settles x instantly.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.
Have a different question?
Search it — if it is from a past paper or a school mock, chances are we have it worked out, or one that uses the same method.
Search any past-paper question