Answer:
See below
Explanation:
So, on the complex plane, we see that
![z_1=2+1i](https://img.qammunity.org/2023/formulas/mathematics/college/dpu1y5o0v863j3wxoticupce18zcb36rle.png)
Therefore,
![z_1+z_2=(2+1i)+(6-3i)=8-2i](https://img.qammunity.org/2023/formulas/mathematics/college/k34txscmvk4h7h0mx478gha2w58jx0dbc0.png)
Since we added the complex numbers, we can see that the real part of
is 8 and the imaginary part of
is -2. Remember that complex numbers are written in the form of
, so either the real or imaginary part can both be negative.