The equation \[2{{x}^{2}}+4xy-p{{y}^{2}}+4x+qy+1=0\] will represent tw – McqOptions

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1.	The equation \[2{{x}^{2}}+4xy-p{{y}^{2}}+4x+qy+1=0\] will represent two mutually perpendicular straight lines, if
A.	p = 1 and q = 2 or 6
B.	p = 2 and q = 0 or 6
C.	p = 2 and q = 0 or 8
D.	p = - 2 and q = - 2 or 8
Answer» D. p = - 2 and q = - 2 or 8

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