Answer
$$2x^2+5x-5-3=2x^2+5x-8$$
Explanation
| $$ \begin{aligned}2x^2+5x-5-3& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}2x^2+5x-8\end{aligned} $$ | |
| ① | Combine like terms: $$ 2x^2+5x \color{blue}{-5} \color{blue}{-3} = 2x^2+5x \color{blue}{-8} $$ |
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