Question
Answer
$$-8i^2+6i-5=6i+3$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}-8i^2+6i-5& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}8+6i-5 \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}6i+3\end{aligned} $$ | |
| ① | $$ -8i^2 = -8 \cdot (-1) = 8 $$ |
| ② | Combine like terms: $$ 6i+ \color{blue}{8} \color{blue}{-5} = 6i+ \color{blue}{3} $$ |
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