$$ \begin{aligned}6x^2+5x^2& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}11x^2\end{aligned} $$ | |
① | Combine like terms: $$ \color{blue}{6x^2} + \color{blue}{5x^2} = \color{blue}{11x^2} $$ |