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