| Exam Board | AQA |
|---|
| Module | AS Paper 2 (AS Paper 2) |
|---|
| Year | 2022 |
|---|
| Session | June |
|---|
| Topic | Indices and Surds |
|---|
7 The expression
$$\frac { 3 - \sqrt { } n } { 2 + \sqrt { } n }$$
can be written in the form \(a + b \sqrt { } n\), where \(a\) and \(b\) and \(n\) are rational but \(\sqrt { } n\) is irrational.
Find expressions for \(a\) and \(b\) in terms of \(n\).