A) \[2x(y-z)\]
B) \[2y(z-x)\]
C) \[2x(z-y)\]
D) \[2z(x-y)\]
Correct Answer: A
Solution :
\[x(y-z)-y(z-x)-z(x-y)\] \[=xy-xz-yz+xy-zx+yz\] \[=2xy-2zx=2x(y-z)\]
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