Question
Answer
$$2-5i\cdot3+4i=-11i+2$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}2-5i\cdot3+4i& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}2-15i+4i \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}-11i+2\end{aligned} $$ | |
| ① | $$ 5 i \cdot 3 = 15 i $$ |
| ② | Combine like terms: $$ 2 \color{blue}{-15i} + \color{blue}{4i} = \color{blue}{-11i} +2 $$ |
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