1.

The factors of \[{{x}^{2}}+xy-2xz-2yz\] are

A.  \[\Rightarrow \]       
B.  \[P(-a)=0\]
C.  \[P(x)={{x}^{3}}-3{{x}^{2}}+4x-12\] 
D.  \[P(x)={{x}^{3}}-3{{x}^{2}}+4x-12\]
Answer» C.  \[P(x)={{x}^{3}}-3{{x}^{2}}+4x-12\] 


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