Answer
$$11-4x^2+3x^2-7x^3+3=-7x^3-x^2+14$$
Explanation
| $$ \begin{aligned}11-4x^2+3x^2-7x^3+3& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}-7x^3-x^2+14\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{11} \color{red}{-4x^2} + \color{red}{3x^2} -7x^3+ \color{blue}{3} = -7x^3 \color{red}{-x^2} + \color{blue}{14} $$ |
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