Answer
$$x^2-\frac{16}{4}x-8=x^2-4x-8$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}x^2-\frac{16}{4}x-8& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}x^2 - \frac{ 16 : \color{orangered}{ 4 } }{ 4 : \color{orangered}{ 4 }} \cdot x - 8 \xlongequal{ } \\[1 em] & \xlongequal{ }x^2-\frac{4}{1}x-8 \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}x^2-4x-8\end{aligned} $$ | |
| ① | Divide both the top and bottom numbers by $ \color{orangered}{ 4 } $. |
| ② | Remove 1 from denominator. |
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Simplify Rational Expressions