Tap the blue circles to see an explanation.
| $$ \begin{aligned}4\cdot3((-2)^2-2)^2& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}12((-2)^2-2)^2 \xlongequal{ } \\[1 em] & \xlongequal{ }12(4-2)^2 \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}12\cdot2^2 \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle3}{\textcircled {3}} } }}}12\cdot4 \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle4}{\textcircled {4}} } }}}48\end{aligned} $$ | |
| ① | $$ 4 \cdot 3 = 12 $$ |
| ② | Combine like terms: $$ \color{blue}{4} \color{blue}{-2} = \color{blue}{2} $$ |
| ③ | 4-2=2 |
| ④ | $ 12 \cdot 4 = 48 $ |