x2 - y2 - 9z2 + 6yz is factorized as – McqOptions

MCQOPTIONS

1.	x2 - y2 - 9z2 + 6yz is factorized as
A.	(x+y-3z)(x+y+3z)
B.	(x-y-3z)(x-y+2z)
C.	(x+y-3z)(x-y+3z)
D.	(x-2y+3z)(x-y+3z)
Answer» D. (x-2y+3z)(x-y+3z)

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