Answer
$$\frac{2x^3-3x+116}{x+4}=2x^2-8x+29$$
Explanation
| $$ \begin{aligned}\frac{2x^3-3x+116}{x+4}& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}2x^2-8x+29\end{aligned} $$ | |
| ① | Simplify $ \dfrac{2x^3-3x+116}{x+4} $ to $ 2x^2-8x+29$. Factor both the denominator and the numerator, then cancel the common factor. $\color{blue}{x+4}$. $$ \begin{aligned} \frac{2x^3-3x+116}{x+4} & =\frac{ \left( 2x^2-8x+29 \right) \cdot \color{blue}{ \left( x+4 \right) }}{ 1 \cdot \color{blue}{ \left( x+4 \right) }} = \\[1ex] &= \frac{2x^2-8x+29}{1} =2x^2-8x+29 \end{aligned} $$ |
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