Question
Answer
$$7-5x^2+3x-2+4x^2=-x^2+3x+5$$
Explanation
| $$ \begin{aligned}7-5x^2+3x-2+4x^2& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}-x^2+3x+5\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{7} \color{red}{-5x^2} +3x \color{blue}{-2} + \color{red}{4x^2} = \color{red}{-x^2} +3x+ \color{blue}{5} $$ |
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