Find the separate equations of the lines represented by the equation $x^2-6xy+8y^2=0$?

Question

$\begin{array}{1 1}(a)\;x+4y=0,x+2y=0\\(b)\;x-4y=0,x-2y=0\\(c)\;x+2y=0,x-y=0\\(d)\;x+3y=0,2x+y=0\end{array}$