We are given the following complex numbers
[tex](-3-5i)+(4-2i)[/tex]
To perform the addition of the complex numbers, simply add the like terms together.
[tex](-3-5i)+(4-2i)=(-3+4)+(-5i-2i)=(1-7i)[/tex]
Similarly,
[tex](7+9i)+(-5i)=\mleft(7\mright)+\mleft(9i-5i\mright)=(7+4i)_{}[/tex]
Therefore, the result of the complex addition is
[tex]\begin{gathered} 19.\: (1-7i) \\ 20.\: (7+4i) \end{gathered}[/tex]
