ECZ 2018 · O-Level Paper 1 — Quadratic Equations

Solve the equation 2x2 = 8.

  • A. x = 4 or x = -4
  • B. x = 2 only
  • C. x = 16 or x = -16
  • D. x = 2 or x = -2

Verified working — step 1

2x2 = 8

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Original examination question © Examinations Council of Zambia. Worked solution and commentary © G12 Titan — not to be reproduced without permission.

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