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A) \[2xyz+4zy{{x}^{2}}\]
B) \[-2xyz\text{ }+\text{ }4zy{{x}^{2}}\]
C) \[-2xyz-zy{{x}^{2}}\]
D) \[-xyz+zy{{x}^{2}}\]
E) None of these
Correct Answer: C
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