Question
Answer
$$9(-2wt\cdot6)t\cdot9w=-972t^2w^2$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}9(-2wt\cdot6)t\cdot9w& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}9-12twt\cdot9w \xlongequal{ } \\[1 em] & \xlongequal{ }-108twt\cdot9w \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}-972t^2w^2\end{aligned} $$ | |
| ① | $$ 2 w t \cdot 6 = 12 t w $$ |
| ② | $$ -108 t w t \cdot 9 w = -972 t^{1 + 1} w^{1 + 1} = -972 t^2 w^2 $$ |
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