Question
Answer
$$x^2-5x^2-36=-4x^2-36$$
Explanation
| $$ \begin{aligned}x^2-5x^2-36& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}-4x^2-36\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{x^2} \color{blue}{-5x^2} -36 = \color{blue}{-4x^2} -36 $$ |
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