| Exam Board | AQA |
|---|
| Module | Paper 3 (Paper 3) |
|---|
| Year | 2024 |
|---|
| Session | June |
|---|
| Topic | Quadratic Functions |
|---|
2 The quadratic equation
$$4 x ^ { 2 } + b x + 9 = 0$$
has one repeated real root.
Find \(b\)
Circle your answer.
\(b = 0\)
\(b = \pm 12\)
\(b = \pm 13\)
\(b = \pm 36\)