| $$ \begin{aligned}5+2i+3-2i& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}8\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{5} + \, \color{red}{ \cancel{2i}} \,+ \color{blue}{3} \, \color{red}{ -\cancel{2i}} \, = \color{blue}{8} $$ |