Question
Answer
$$-3x^2+2xy+5y^2+6x^2+8xy-y^2=3x^2+10xy+4y^2$$
Explanation
| $$ \begin{aligned}-3x^2+2xy+5y^2+6x^2+8xy-y^2& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}3x^2+10xy+4y^2\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{-3x^2} + \color{red}{2xy} + \color{green}{5y^2} + \color{blue}{6x^2} + \color{red}{8xy} \color{green}{-y^2} = \color{blue}{3x^2} + \color{red}{10xy} + \color{green}{4y^2} $$ |
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