Question
Answer
$$8x-7x^3+14+7x-x^2-x^3+4x^2=-8x^3+3x^2+15x+14$$
Explanation
| $$ \begin{aligned}8x-7x^3+14+7x-x^2-x^3+4x^2& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}-8x^3+3x^2+15x+14\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{8x} \color{red}{-7x^3} +14+ \color{blue}{7x} \color{green}{-x^2} \color{red}{-x^3} + \color{green}{4x^2} = \color{red}{-8x^3} + \color{green}{3x^2} + \color{blue}{15x} +14 $$ |
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