Question
Answer
$$4+1\cdot(14-14i)=-14i+18$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}4+1\cdot(14-14i)& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}4+14-14i \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}-14i+18\end{aligned} $$ | |
| ① | Multiply $ \color{blue}{1} $ by $ \left( 14-14i\right) $ $$ \color{blue}{1} \cdot \left( 14-14i\right) = 14-14i $$ |
| ② | Combine like terms: $$ \color{blue}{4} + \color{blue}{14} -14i = -14i+ \color{blue}{18} $$ |
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