Provide an appropriate response.Write using the letter i, simplifying if possible: 

A. 2ix2
B. -2ix
C. -4ix2
D. 4ix2

Answer: D

Mathematics

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A.  
B.  
C.
D.  

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Multiply and, if possible, simplify. 

A. 42 
B.
C.
D.

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Determine the domain of the expression. Write the domain in interval notation.

A. (-?, 0) (0, 4) ? (4, ?) B. (-?, 0) ? (0, ?) C. (-?, -4) (-4, 0) ? (0, ?) D. (0, 4) ? (4, ?)

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Find and simplify the difference quotient of f,  , for the function.f(x) = 

A.
B. 0
C.
D.  

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