ECZ 2018 · O-Level Paper 1 — Introduction To Calculus
Given that y = 2x3 - 5x2 + 4x + 2, find dydx.
- A. 6x2 - 10x + 4
- B. 6x2 - 10x
- C. 2x2 - 10x + 4
- D. 6x2 - 5x + 4
Verified working — step 1
Differentiate term by term with the power rule: multiply each coefficient by its power, then lower the power by 1. A lone constant vanishes.The full step-by-step working and final answer, plus the video lesson for this topic, 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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