Find each sum or difference of the complex numbers

Question

(-9-4i)+(-2-7i)+(8+13i)

Answer 1

Hi Amelia,

 

The complex numbers work like "like terms." 

 

Real parts get added/subtracted with real parts.

Imaginary parts get added/subtracted with imaginary parts.

 

So the real part of your answer will be

 

-9-2+8 = -3

 

The imaginary part of your answer will be

 

-4-7+13 = 2

 

So your final answer will be -3 + 2i