Question
Answer
$$3+2i\cdot2+i+4+3i=8i+7$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}3+2i\cdot2+i+4+3i& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}3+4i+i+4+3i \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}5i+3+4+3i \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle3}{\textcircled {3}} } }}}8i+7\end{aligned} $$ | |
| ① | $$ 2 i \cdot 2 = 4 i $$ |
| ② | Combine like terms: $$ 3+ \color{blue}{4i} + \color{blue}{i} = \color{blue}{5i} +3 $$ |
| ③ | Combine like terms: $$ \color{blue}{5i} + \color{red}{3} + \color{red}{4} + \color{blue}{3i} = \color{blue}{8i} + \color{red}{7} $$ |
This page was created using
Complex Expression calculator