Equation represents a pair of parallel lines and find distance between them. `4x^2+4xy+y^2-6x-3y-4=0`

Show that the following equations represents a pair of parallel lines and also find the distance between them. 9x^(2)-6xy+y^(2)+18x-6y+8=0

Show that the following equations represents a pair of parallel lines and also find the distance between them. x^(2)+2 sqrt(3)xy+3y^(2)-3x-3 sqrt(3) y-4=0

Show that the following equations represents a pair of parallel lines and also find the distance between them. Show that the equation 8x^(2)-24xy+18y^(2)-6x+9y-5=0 represents a pair of parallel lines and find the distance between them.

Show that 9x^2+24xy+16y^2+21x + 28y+ 6 =0 represents a pair of parallel straight lines and find the distance between them .

Show that the equation 4x^(2)+4xy+y^(2)-6x-3y-4=0 represents a pair of parallel lines. Find the distance between them.