Question
Answer
$$z^2+(6-4i)z+10=-4iz+z^2+6z+10$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}z^2+(6-4i)z+10& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}z^2+6z-4iz+10 \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}-4iz+z^2+6z+10\end{aligned} $$ | |
| ① | $$ \left( \color{blue}{6-4i}\right) \cdot z = 6z-4iz $$ |
| ② | Combine like terms: $$ z^2+6z-4iz = -4iz+z^2+6z $$ |
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