Factor the sum or difference of two cubes completely.(7 - x)3 - x3
A. (7 - 2x)(x2 - 7x + 49)
B. (7 - x)(x2 - 7x + 49)
C. (7 + 2x)(x2 - 7x + 49)
D. (7 - 2x)(3x2 - 7x + 49)
Answer: A
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= 
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Which of the following statements about cash management systems is correct?
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