Answer:
I'm assuming there's a d option maybe? because this should be the answer
Explanation:
Well you have the equation:
r-s
So all you need to do is plug in 1+2i as r, and 3+3i as s, and then you add like terms (kind of like how you can do 2 * sqrt(2) - 3 * sqrt(2) and you simply subtract the "coefficients")
![(1+2i)-(3+3i)](https://img.qammunity.org/2023/formulas/mathematics/college/3pjbowe8j5trvp3e05f421midu8dzrw9d9.png)
Distribute the negative sign:
![1+2i-3-3i](https://img.qammunity.org/2023/formulas/mathematics/college/czlw2wsgi6gnxsxnipd0neo1n7uu8bf3h4.png)
Combine like terms
![(1-3)+(2i-3i)](https://img.qammunity.org/2023/formulas/mathematics/college/spu3wg8sey2pawp9nev78gvmbm9mv5wpuq.png)
Simplify:
![-2-i](https://img.qammunity.org/2023/formulas/mathematics/college/l3avl0me1ckkd2fc8gjshrw2doigi4jlwd.png)