2006-12-03T11:59:59Z https://matematicasies.com/ecuaciones-segundo-grado-646#comment89 2006-12-03T11:59:59Z

<p><img src='https://matematicasies.com/local/cache-TeX/9a2098750ed966de0ec42853cf67868b.png' style="vertical-align:middle;" width="130" height="38" alt="x=2, \:\: x=-1" title="x=2, \:\: x=-1"></p>