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