Find the equation of the following parabola : Focus at $(-1,-2)$,directrix $x-2y+3=0$.

Question

$\begin{array}{1 1}4x^2+y^2+4xy+4x+32y+16=0\\4x^2+y^2-4xy-4x+32y+16=0\\4x^2+y^2-4xy+4x+32y+16=0\\4x^2+y^2-4xy+4x-32y+16=0\end{array} $