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

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