\[( - y - 2 - y)^{2} = 16\]
\[( - 2y - 2)^{2} = 16\]
\[\left( - 2(y + 1) \right)^{2} = 16\]
\[4(y + 1)^{2} = 16\]
\[(y + 1)^{2} = 4\]
\[Ответ:( - 3;1);\ (1;\ - 3).\]