Factor by grouping.12a3 - 9a2b - 16ab2 + 12b3
A. (12a2 - 4b2)(a - 3b)
B. (3a2 + 4b2)(4a + 3b)
C. (3a2 - 4b2)(4a - 3b)
D. (3a2 - 4b)(4a - 3b)
Answer: C
Mathematics
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A. ? = 
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B. ? = 
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C. 
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D. ? = 
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A. 7 B. 12 C. None of these D. (12, 7)
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Simplify the rational expression. If the expression is already in simplest form, state this as your answer.
A. 
B. 
C. 
D. 
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