| Exam Board | WJEC |
|---|---|
| Module | Unit 1 (Unit 1) |
| Year | 2023 |
| Session | June |
| Marks | 7 |
| Paper | Download PDF ↗ |
| Mark scheme | Download PDF ↗ |
| Topic | Indices and Surds |
| Type | Simplify algebraic expressions with indices |
| Difficulty | Moderate -0.8 This is a straightforward algebraic manipulation question testing index laws and surds. It requires routine application of rules for fractional indices and simplification, with no problem-solving or conceptual insight needed—simpler than average A-level questions but not trivial due to the multiple steps involved. |
| Spec | 1.02a Indices: laws of indices for rational exponents |
Simplify the expression $\sqrt[3]{512a^7} - \frac{a^{\frac{7}{2}} \times a^{-\frac{1}{3}}}{a^6}$. [4]
\hfill \mbox{\textit{WJEC Unit 1 2023 Q5 [7]}}