If 4x2 + 4y2 + 4z2 = 12x + 12y 18 then x + y + z = ? – McqOptions

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1.	If 4x² + 4y² + 4z² = 12x + 12y 18 then x + y + z = ?
A.	3
B.	4
C.	3/2
D.	2
Answer» B. 4

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