QD Question 1 (Charlene and Jun Jie)
The first step in solving a partial fraction is to use the formula given. In this case it will be the RHS of the first line.
The second step is to get rid of the denominator by multiplying it. This is shown in green.
The third step is to substitute X, always start with the roots and use simple numbers. This is shown in purple, green and red.
The last statement is how to present your answer. Put 3 dots aligned in a triangular formation and insert the right values for A, B and C. If the answer can be simplified, then simplify it.