Question
Answer
$$a^2+2a+b^2+3a+3b^2=a^2+4b^2+5a$$
Explanation
| $$ \begin{aligned}a^2+2a+b^2+3a+3b^2& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}a^2+4b^2+5a\end{aligned} $$ | |
| ① | Combine like terms: $$ a^2+ \color{blue}{2a} + \color{red}{b^2} + \color{blue}{3a} + \color{red}{3b^2} = a^2+ \color{red}{4b^2} + \color{blue}{5a} $$ |
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