If x+y+z=22 and xy+yz+zx=35, then what is the value of (x-y)2 +(y-z)2+ – McqOptions

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1.	If x+y+z=22 and xy+yz+zx=35, then what is the value of (x-y)² +(y-z)²+(z-x)²?
A.	793
B.	681
C.	758
D.	715
Answer» D. 715

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