ECZ 2024 · GCE Paper 1 — Introduction To Calculus
Given that y = 4x3 - 2x2 + 1, find dydx.
- A. 12x - 4
- B. 12x2 - 4x
- C. 12x2 - 4x + 1
- D. 4x2 - 4x
Verified working — step 1
Differentiate term by term with the power rule: bring each power down to multiply the coefficient, then lower the power by 1. A lone constant has no x, so it disappears when you differentiate.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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