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