Factor by grouping. If prime, so state.x3 - 7x2 + 3x - 21

A. (x + 7)(x2 + 3)
B. (x - 7)(x2 + 3)
C. (x - 7)(x2 + 7)
D. (x - 21)(x2 - 7x + 3)


Answer: B

Mathematics

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