| Exam Board | CAIE |
| Module | Further Paper 2 (Further Paper 2) |
| Year | 2020 |
| Session | June |
| Topic | First order differential equations (integrating factor) |
1 Find the solution of the differential equation
$$\frac { d y } { d x } + 5 y = e ^ { - 7 x }$$
for which \(y = 0\) when \(x = 0\). Give your answer in the form \(y = f ( x )\).