Question
Answer
$$-10x^2-6x-8x^2+2+12x=-18x^2+6x+2$$
Explanation
| $$ \begin{aligned}-10x^2-6x-8x^2+2+12x& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}-18x^2+6x+2\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{-10x^2} \color{red}{-6x} \color{blue}{-8x^2} +2+ \color{red}{12x} = \color{blue}{-18x^2} + \color{red}{6x} +2 $$ |
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