Question
Answer
$$28+x^2+7y^2-2xy+3x^2+4+10xy-6y^2=4x^2+8xy+y^2+32$$
Explanation
| $$ \begin{aligned}28+x^2+7y^2-2xy+3x^2+4+10xy-6y^2& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}4x^2+8xy+y^2+32\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{28} + \color{red}{x^2} + \color{green}{7y^2} \color{orange}{-2xy} + \color{red}{3x^2} + \color{blue}{4} + \color{orange}{10xy} \color{green}{-6y^2} = \\ = \color{red}{4x^2} + \color{orange}{8xy} + \color{green}{y^2} + \color{blue}{32} $$ |
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