Thread: simplify

Simpllify 3+2i-5+6i
2-i

Originally Posted by Cheah Pooi See

Simpllify 3+2i-5+6i
2-i

Hint: $\displaystyle \frac {5 + 6i}{2 - i} = \frac {5 + 6i}{2 - i} \cdot \frac {2 + i}{2 + i}$