if the sum of the slopes of the lines given by `x^2-2cxy-7y^2=0` is four times their product then c has the value?

If the sum of the slopes of the lines given by x^(2)+2cxy-y^(2)=0 is four times their product, then c has the value

if the sum of the slopes of the lines given by x^(2)-2cxy-7y^(2)=0 is four xx their product then chas the value?

If the sum of the slopes of the lines given by x^2-2cxy-7y^2=0 is four times their product , then the value of c is

If the sum of the slopes of the lines given by x^(2)-2cxy-7y^(2)=0 is four xx their product,then the value of c is

The sum of the slopes of the lines given by x^(2)-7xy+12y^(2)=0 is

The sum of the slopes of the lines given by 3x^(2)+5xy-2y^(2)=0 is

If the sum of the slopes of the lines given by 3x^(2)-2cxy-5y^(2)=0 is twice their product, then the value of c is

If the sum of slopes of the lines given by 3x^(2)+kxy-9y^(2)=0 is 5 times their product, then k=

If the sum of the slopes of the lines given by x^(2)-2cxy+7y^(2)=0 is 4 xx their product; then find the value of c?

If sum of the slopes of the lines given by x^(2)-pxy+8y^(2)=0 is three times their product then p= . . .