(x2 + y2 - z2)2 - (x2 - y2 + z2)2 = ________ – McqOptions

MCQOPTIONS

1.	(x2 + y2 - z2)2 - (x2 - y2 + z2)2 = ________
A.	4x2y2 - 4x2z2
B.	4x2y2z2
C.	x4 + y4 + z4
D.	0
Answer» B. 4x2y2z2

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