Answer
$$6-3i-(4+3i)=-6i+2$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}6-3i-(4+3i)& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}6-3i-4-3i \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}-6i+2\end{aligned} $$ | |
| ① | Remove the parentheses by changing the sign of each term within them. $$ - \left( 4+3i \right) = -4-3i $$ |
| ② | Combine like terms: $$ \color{blue}{6} \color{red}{-3i} \color{blue}{-4} \color{red}{-3i} = \color{red}{-6i} + \color{blue}{2} $$ |
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