$$ \begin{aligned}-6+8i+4-2i& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}6i-2\end{aligned} $$ | |
① | Combine like terms: $$ \color{blue}{-6} + \color{red}{8i} + \color{blue}{4} \color{red}{-2i} = \color{red}{6i} \color{blue}{-2} $$ |