Question
Answer
$$3x^4-6x^5+7x^4-9x^2=-6x^5+10x^4-9x^2$$
Explanation
| $$ \begin{aligned}3x^4-6x^5+7x^4-9x^2& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}-6x^5+10x^4-9x^2\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{3x^4} -6x^5+ \color{blue}{7x^4} -9x^2 = -6x^5+ \color{blue}{10x^4} -9x^2 $$ |
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