\documentclass[a4paper, ngerman]{report}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{babel}
\usepackage{eurosym, tipa, textcomp, textgreek, upgreek}
\usepackage{amssymb, amsfonts, amsmath, dsfont}
\usepackage[hidelinks]{hyperref}
\usepackage{cleveref}
\usepackage{graphicx} 
\usepackage{longtable, array, tabularx, booktabs, colortbl}
\usepackage{minted}
\begin{document}
\thispagestyle{empty}

\hrule
\begin{center}

\textbf{Fallbeschleunigung in Deutschland}
$$9,81\,\frac{m}{s^2}$$ \\
~ \\

\textbf {pq-Formel}
$$x_{1,2} = - \frac{p}{2} \pm \sqrt{\left(\frac{p}{2}\right)^2 - q}$$ \\
~ \\

\textbf{Mitternachtsformel} 
$$x_{1,2} = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}$$ \\
~ \\

\textbf{Catalansche Zahlen}
\begin{equation*} C_n = \frac{1}{n+1} {2n \choose n} = \frac{(2n)!}{(n+1)!n!} \end{equation*} \\
~ \\

\textbf{Definition der Fakultät} 
$$n! = \prod_{i=1}^{n} i$$ \\
~ \\

\textbf{Menge aller ungeraden natürlichen Zahlen}
$$\{ x \mid x \in \mathds{N}, \mathrm{ungerade}(x) \}$$
~ \\

\textbf{Elimination $\neg\exists x$}
$$\neg\exists x . p(x) \Leftrightarrow \forall x . \neg p(x)$$
\end{center}

\hrule
\end{document}
