ECZ 2015 · O-Level Paper 1 — Quadratic Equations

Solve the equation 2y2 = 13y.

  • A. y = 6.5 only
  • B. y = 0 or y = 6.5
  • C. y = 0 or y = −6.5
  • D. y = ±6.5

Verified working — step 1

Bring everything to one side and factor out y - dividing by y instead would silently discard a solution.

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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