Question
Answer
$$3x^2+x+5+8-6x+6x^2=9x^2-5x+13$$
Explanation
| $$ \begin{aligned}3x^2+x+5+8-6x+6x^2& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}9x^2-5x+13\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{3x^2} + \color{red}{x} + \color{green}{5} + \color{green}{8} \color{red}{-6x} + \color{blue}{6x^2} = \color{blue}{9x^2} \color{red}{-5x} + \color{green}{13} $$ |
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