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\documentclass[a4paper,11pt]{article}

\usepackage{axessibility}

\title{Algebraic equations of second degree:\\
relation between roots and coefficients}
\author{}
\date{}


\begin{document}



\maketitle


\tagstructbegin{tag=P}
  \tagmcbegin{tag=P}
Given the equation \auxiliaryspace
  \tagmcend
\tagstructend
 \( a x^2 + bx + c= 0, a\not=0 \), 
\tagstructbegin{tag=P}
  \tagmcbegin{tag=P}
 we have the following relations between its roots \auxiliaryspace
  \tagmcend
\tagstructend
 \( x_{1,2} \):

\begin{align*}
x_1+x_2 & = -\frac{b}{a},\\
   x_1\cdot x_2 &= \phantom{-}\frac{c}{a}.
\end{align*}



\end{document} 
