Tap the blue circles to see an explanation.
$$ \begin{aligned}\sqrt{8-2}^2+(0-8)^2& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}\sqrt{8-2}^2+(-8)^2 \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}\sqrt{8-2}^2+64\end{aligned} $$ | |
① | Combine like terms |
② | $ (-8) ^ 2 = 64 $ |