| Exam Board | WJEC |
|---|---|
| Module | Unit 1 (Unit 1) |
| Year | 2019 |
| Session | June |
| Marks | 6 |
| Paper | Download PDF ↗ |
| Mark scheme | Download PDF ↗ |
| Topic | Factor & Remainder Theorem |
| Type | Find factor then solve |
| Difficulty | Standard +0.3 This is a cubic equation requiring the factor theorem and polynomial division. While it involves multiple steps (testing factors, dividing, solving the resulting quadratic), it's a standard A-level technique with straightforward integer roots. The 6 marks reflect the working required rather than conceptual difficulty, making it slightly easier than average. |
| Spec | 1.02j Manipulate polynomials: expanding, factorising, division, factor theorem |
Use an algebraic method to solve the equation $12x^3 - 29x^2 + 7x + 6 = 0$.
Show all your working. [6]
\hfill \mbox{\textit{WJEC Unit 1 2019 Q03 [6]}}