Answer
$$x\cdot2-6x\cdot8x=-48x^2+2x$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}x\cdot2-6x\cdot8x& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}2x-48x^2 \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}-48x^2+2x\end{aligned} $$ | |
| ① | $$ 6 x \cdot 8 x = 48 x^{1 + 1} = 48 x^2 $$ |
| ② | Combine like terms: $$ -48x^2+2x = -48x^2+2x $$ |
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