Answer
$$2(y+1)+2(y-2)=4y-2$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}2(y+1)+2(y-2)& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}2y+2+2y-4 \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}4y-2\end{aligned} $$ | |
| ① | Multiply $ \color{blue}{2} $ by $ \left( y+1\right) $ $$ \color{blue}{2} \cdot \left( y+1\right) = 2y+2 $$Multiply $ \color{blue}{2} $ by $ \left( y-2\right) $ $$ \color{blue}{2} \cdot \left( y-2\right) = 2y-4 $$ |
| ② | Combine like terms: $$ \color{blue}{2y} + \color{red}{2} + \color{blue}{2y} \color{red}{-4} = \color{blue}{4y} \color{red}{-2} $$ |
This page was created using
Simplify polynomials calculator