Question

How do you simplify `(1-2i)-(3+4i)?`

Answer 1

`(-2-6i)`

Explanation:

For `(a +bi)`

`(a_1 +b_1i)-(a_2 +b_2i)=(a_1-a_2 +b_1i-b_2i)`

`:.`

`(1-2i)-(3+4i)=(1-3+(-2i)-(4i))=(-2-6i)`