Question
Answer
$$2(x\cdot2+4x+1)=12x+2$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}2(x\cdot2+4x+1)& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}2(6x+1) \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}12x+2\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{2x} + \color{blue}{4x} +1 = \color{blue}{6x} +1 $$ |
| ② | Multiply $ \color{blue}{2} $ by $ \left( 6x+1\right) $ $$ \color{blue}{2} \cdot \left( 6x+1\right) = 12x+2 $$ |
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