Question
Answer
$$r((6+3)^2+(5+9)^2)=r\cdot277$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}r((6+3)^2+(5+9)^2)& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}r(9^2+14^2) \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}r\cdot(81+196) \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle3}{\textcircled {3}} } }}}r\cdot277\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{6} + \color{blue}{3} = \color{blue}{9} $$Combine like terms: $$ \color{blue}{5} + \color{blue}{9} = \color{blue}{14} $$ |
| ② | 5+9=145+9=14 |
| ③ | Combine like terms: $$ \color{blue}{81} + \color{blue}{196} = \color{blue}{277} $$ |
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