Question

Need answer with steps
`( - 3 - 5i) + (4 - 2i)`
`(7 + 9i) + ( - 5i)`

Answer 1

We are given the following complex numbers

`(-3-5i)+(4-2i)`

To perform the addition of the complex numbers, simply add the like terms together.

`(-3-5i)+(4-2i)=(-3+4)+(-5i-2i)=(1-7i)`

Similarly,

`(7+9i)+(-5i)=\mleft(7\mright)+\mleft(9i-5i\mright)=(7+4i)_{}`

Therefore, the result of the complex addition is

`\begin{gathered} 19.\: (1-7i) \\ 20.\: (7+4i) \end{gathered}`