Question
Answer
$$-4(v+1)+2=-4v-2$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}-4(v+1)+2& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}-(4v+4)+2 \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}-4v-4+2 \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle3}{\textcircled {3}} } }}}-4v-2\end{aligned} $$ | |
| ① | Multiply $ \color{blue}{4} $ by $ \left( v+1\right) $ $$ \color{blue}{4} \cdot \left( v+1\right) = 4v+4 $$ |
| ② | Remove the parentheses by changing the sign of each term within them. $$ - \left(4v+4 \right) = -4v-4 $$ |
| ③ | Combine like terms: $$ -4v \color{blue}{-4} + \color{blue}{2} = -4v \color{blue}{-2} $$ |
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