A hint to get started
Solve coupled equations involving a conjugate
The complex numbers satisfy and . Find and . marks
Review: [2013/RVHS/I/7]; Lecture Example 9: [2014/RVHS/Prelim/I/7(part)] (the printed sources disagree).
CJC · Review problems · Question 3
Replace w first; write the conjugate of x+iy as x−iy before expanding.