\documentclass{article}

\usepackage{amsfonts}
\usepackage[margin=1in, paperwidth=8.5in, paperheight=11in]{geometry}
%If \usepackage{fullpage} does not work, try this geometry package instead.

\def\poly{x^3 + x^2 + x + 1}
%This defines a custom command so you can recall it easily throughout the document.
\def\showwork{You must show all work to recieve credit.}

\begin{document}

The set of real numbers is denoted by the symbol $\mathbb{R}$.

The set of complex numbers is denoted by the symbol $\mathbb{C}$.

$$M \trianglelefteq N$$

$$\hbar$$

\circledR

The polynomial $\poly$ has exactly three roots.
%We recalled the polynomial defined at the top of the document.

1. Factor $\poly$.  \showwork

\end{document}