Question
Answer
$$(4z+5i)\cdot2=10i+8z$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}(4z+5i)\cdot2& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}8z+10i \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}10i+8z\end{aligned} $$ | |
| ① | $$ \left( \color{blue}{4z+5i}\right) \cdot 2 = 8z+10i $$ |
| ② | Combine like terms: $$ 10i+8z = 10i+8z $$ |
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