Question
Answer
$$2x^2-1+3x^3+5-13x-11x^2=3x^3-9x^2-13x+4$$
Explanation
| $$ \begin{aligned}2x^2-1+3x^3+5-13x-11x^2& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}3x^3-9x^2-13x+4\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{2x^2} \color{red}{-1} +3x^3+ \color{red}{5} -13x \color{blue}{-11x^2} = 3x^3 \color{blue}{-9x^2} -13x+ \color{red}{4} $$ |
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