Multiply vertically.(7x - 1)(x2 - 2x + 1)
A. 7x3 - 15x2 + 9x - 1
B. 7x3 - 14x2 + 7x + 1
C. 7x3 - 13x2 + 5x - 1
D. 7x3 + 15x2 - 9x + 1
Answer: A
Mathematics
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?
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