Multiply.(x - 1) (x2 + x + 1)
A. x3 - 1
B. x3 + 1
C. x3 - 2x2 - 2x - 1
D. x3 + 2x2 + 2x + 1
Answer: A
Mathematics
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A. 
= 
B. 
= 
C. 
= 
D. 
= 
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A. (2, 1), (1, 2) B. (-2, -1), (-1, -2) C. (-2, 1), (-1, 2) D. (2, -1), (1, -2)
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+ x = 5
A. ? B. {2, 12} C. {12} D. {2}
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