Question
Answer
$$3x^2+7x+8+x^3+x^2-4x+8=x^3+4x^2+3x+16$$
Explanation
| $$ \begin{aligned}3x^2+7x+8+x^3+x^2-4x+8& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}x^3+4x^2+3x+16\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{3x^2} + \color{red}{7x} + \color{green}{8} +x^3+ \color{blue}{x^2} \color{red}{-4x} + \color{green}{8} = x^3+ \color{blue}{4x^2} + \color{red}{3x} + \color{green}{16} $$ |
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