| $$ \begin{aligned}4y^2-2y+6-3y^2+y+5& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}y^2-y+11\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{4y^2} \color{red}{-2y} + \color{green}{6} \color{blue}{-3y^2} + \color{red}{y} + \color{green}{5} = \color{blue}{y^2} \color{red}{-y} + \color{green}{11} $$ |