\[\left( x - x_{0} \right)^{2} + \left( y - y_{0} \right)^{2} = r^{2}\]
\[C( - 3;2):\ \]
\[(x + 3)^{2} + (y - 2)^{2} = r^{2}.\]
\[A(1;4):\]
\[(1 + 3)^{2} + (4 - 2)^{2} = r^{2}\]
\[16 + 4 = r^{2}\]
\[r^{2} = 20.\]
\[Уравнение\ окружности:\]
\[(x + 3)^{2} + (y - 2)^{2} = 20.\]