Question
Answer
$$5x^4+3y^2+7x^4+2x^2-4y^2+8y^4=12x^4+8y^4+2x^2-y^2$$
Explanation
| $$ \begin{aligned}5x^4+3y^2+7x^4+2x^2-4y^2+8y^4& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}12x^4+8y^4+2x^2-y^2\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{5x^4} + \color{red}{3y^2} + \color{blue}{7x^4} +2x^2 \color{red}{-4y^2} +8y^4 = \color{blue}{12x^4} +8y^4+2x^2 \color{red}{-y^2} $$ |
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