Question
Answer
$$6x^2+7x-8y+5xy+2x^2-4x-y+xy=8x^2+6xy+3x-9y$$
Explanation
| $$ \begin{aligned}6x^2+7x-8y+5xy+2x^2-4x-y+xy& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}8x^2+6xy+3x-9y\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{6x^2} + \color{red}{7x} \color{green}{-8y} + \color{orange}{5xy} + \color{blue}{2x^2} \color{red}{-4x} \color{green}{-y} + \color{orange}{xy} = \\ = \color{blue}{8x^2} + \color{orange}{6xy} + \color{red}{3x} \color{green}{-9y} $$ |
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