| Exam Board | OCR |
|---|---|
| Module | C1 (Core Mathematics 1) |
| Marks | 4 |
| Paper | Download PDF ↗ |
| Mark scheme | Download PDF ↗ |
| Topic | Inequalities |
| Type | Solve quadratic inequality |
| Difficulty | Moderate -0.5 This is a straightforward quadratic inequality requiring factorization (or quadratic formula) and sign analysis. While it involves multiple steps, it's a standard C1 exercise with no conceptual challenges—slightly easier than average since the factorization is clean and the method is routine. |
| Spec | 1.02g Inequalities: linear and quadratic in single variable |
4. Solve the inequality
$$2 x ^ { 2 } - 9 x + 4 < 0 .$$
\hfill \mbox{\textit{OCR C1 Q4 [4]}}