15 lines
339 B
TeX

\documentclass[a4paper]{article}
\usepackage{lmodern}
\usepackage{amssymb,amsmath}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage{hyperref}
\begin{document}
\thispagestyle{empty}
\begin{align}
13 \cdot (4a - 3)^2 &= 13 \cdot (16a^2 - 24a + 9) \\
&= 208a^2 - 312a + 117
\end{align}
\end{document}