If x = 2, y = 5 and z = - 7, then the value of \[{{x}^{2}}+{{y}^{2}}+{{z}^{2}}-2xyz\]is ____.

If x = 2, y = 5 and z = - 7, then the value of \[{{x}^{2}}+{{y}^{2}}+{

1.	If x = 2, y = 5 and z = - 7, then the value of \[{{x}^{2}}+{{y}^{2}}+{{z}^{2}}-2xyz\]is ____.
A.	-62
B.	218
C.	-63
D.	212
E.	None of these
Answer» C. -63