The value of h for which the equation `3x^2+2hxy-3y^2-40x+30y-75=0` represents a pair of straight lines , are

The value of 'p' for which the equation x^2+pxy+y^2-5x-7y+6=0 represents a pair of straight lines , is

The value of lambda for which the equation x^(2)-y^(2)-x-lambda y-2=0 represent a pair of straight line,are

The value of lambda for which the equation x^2-y^2 - x - lambda y - 2 = 0 represent a pair of straight line, are

The value of lambda for which the equation x^2-y^2 - x - lambda y - 2 = 0 represent a pair of straight line, are

Find the value of lambda for which the equation 2x^(2)+4xy+y^(2)+x+3y+2=0 represents a pair of straight line

The set of value of h for which the equation 4x^(2)+hxy-3y^(2)=0 represents a pair of real and distinct lines is