1. (3+2i)+(1-3i); 2. (1-4i)-(3+i); 3. (2+i)(3-2i); 4. i(1+3i). помогите плиз

Question

1. (3+2i)+(1-3i);
2. (1-4i)-(3+i);
3. (2+i)(3-2i);
4. i(1+3i).
помогите плиз

Answer 1

1) 3+2i+1-3i=4-i
2) 1-4i-3-i= -4-5i
3) 6-4i+3i-2i²=6-i+2=8-i
4) i+3i²=i-3