Question
Answer
$$7i(-6i)=42$$
Explanation
| $$ \begin{aligned}7i(-6i)& \xlongequal{ }-42i^2 \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}42\end{aligned} $$ | |
| ① | $$ -42i^2 = -42 \cdot (-1) = 42 $$ |
This page was created using
Complex Expression calculator