Write the domain of f in interval notation.f(x) = 

A.  ? 
B.  ?  ?  ? 
C. (-?, ?)
D.  ? 

Answer: D

Mathematics

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A. -6m2 - 8mn + 8n2 B. 12m2 + 4mn - 4n2 C. -6m2 - 8mn - 4n2 D. -6m2 + 4mn + 8n2

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A. 23
B. -33
C. -23
D. - 

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