Optellen en aftrekken (a+bi)

Bereken

\((-4-3i)-(10+4i)\)

\((-4-3i)-(10+4i)= -4-3i -10-4i =\color{red}{-4-10}\color{blue}{-3i -4i}=\color{red}{-14}\color{blue}{-7i}\)