Tap the blue circles to see an explanation.
$$ \begin{aligned}\frac{11-7i}{1+i}-7i& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}2-9i-7i \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}-16i+2\end{aligned} $$ | |
① | Divide $ \, 11-7i \, $ by $ \, 1+i \, $ to get $\,\, 2-9i $. ( view steps ) |
② | Combine like terms: $$ 2 \color{blue}{-9i} \color{blue}{-7i} = \color{blue}{-16i} +2 $$ |