• Mar 2, 2026 mixed exercise 7f edexcel c2 solutions tor: \((x - 1)(x - 3) = 0\). Critical points at \(x=1\) and \(x=3\). Use the second derivative test or first derivative sign analysis: Find \(f''(x) = 6x - 12\). At \(x=1\), \(f''(1) = 6 - 12 = -6\) (concave down), so local maximum. A By Spencer Reichert
• Jun 13, 2026 exploring science test 7f ions. 2. Create a Study Schedule Allocate specific times for each topic based on your strengths and weaknesses. Incorporate regular revision sessions. Balance study with breaks to maintain focus and avoid burnout. 3. By Vernon O'Conner
