$$ \begin{aligned}4+4i+1-2i& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}2i+5\end{aligned} $$ | |
① | Combine like terms: $$ \color{blue}{4} + \color{red}{4i} + \color{blue}{1} \color{red}{-2i} = \color{red}{2i} + \color{blue}{5} $$ |