Sr Examen
xy=8; x-y=2
Solución
Respuesta rápida
$$x_{1} = -2$$
=
$$-2$$
=
$$y_{1} = -4$$
=
$$-4$$
=
=
$$-2$$
=
-2
$$y_{1} = -4$$
=
$$-4$$
=
-4
$$x_{2} = 4$$
=
$$4$$
=
$$y_{2} = 2$$
=
$$2$$
=
=
$$4$$
=
4
$$y_{2} = 2$$
=
$$2$$
=
2