Question
Answer
$$x^2-6x-40-x+4=x^2-7x-36$$
Explanation
| $$ \begin{aligned}x^2-6x-40-x+4& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}x^2-7x-36\end{aligned} $$ | |
| ① | Combine like terms: $$ x^2 \color{blue}{-6x} \color{red}{-40} \color{blue}{-x} + \color{red}{4} = x^2 \color{blue}{-7x} \color{red}{-36} $$ |
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