Answer
$$4\cdot(2+7)=36$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}4\cdot(2+7)& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}4\cdot9 \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}36\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{2} + \color{blue}{7} = \color{blue}{9} $$ |
| ② | $ 4 \cdot 9 = 36 $ |
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Simplify Rational Expressions