Basisbewerkingen gemengd (a+bi)

Bereken

\((-1-8i)-(-7-2i)\)

\((-1-8i)-(-7-2i)= -1-8i +7+2i =\color{red}{-1+7}\color{blue}{-8i +2i}=\color{red}{6}\color{blue}{-6i}\)