Below is the questions :
Can somebody show me the working on how to solve it. Thank you.
The problem is asks you to do 5 steps of a numerical integration of a differential equation. There are many different algorithms for that: Euler method, second order Runge-Kutta, fourth order Runge-Kutta, Adams-Bashforth, etc. Since none of us took the course YOU are taking, none of us know which algorithm you would be expected to use. We didn't attend the classes! Hopefully you did.