If the equation `px^(2)-20xy+y^(2)+2gx+2fy+c=0`represents a pair of straight lines whose slopes are m and `m^(2)` ,then sum of all possible values of p is

If the equation ax^(2)-6xy+y^(2)+2gx+2fy+c=0 represents a pair of lines whose slopes are m and m^(2), then sum of all possible values of a is-

If the equation ax ^(2) - 6xy +y ^(2) + 2gx + 2fy + x =0 represents a pair of lines whose slopes are m and m^(2), then sum of all possible values of |(3a)/(10)| is "______"

If the equation ax^(2)+2hxy+by^(2)+2gx+2fy+c=0 represents a pair of parallel lines, then

If the equation ax^(2)+ay^(2)+2gx+2fy+c=0 represents a pair of lines then

a(x^(2)-y^(2))+xy=0 represents a pair of straight lines for

If the equation ax^(2)-6xy+y^(2)=0 represents a pair of lines whose slopes are m and m^(2), then the value(s) of a is/are

IF the equation x^(2) + y^(2) + 2gx + 2fy + 1 = 0 represents a pair of lines, then

If the equation hxy + gx + fy + c = 0 represents a pair of straight lines, then