Factor by grouping.x3 + 7x2 - 6x - 42
A. (x2 + 7)(x - 6)
B. (x3 - 6x)(x + 7)
C. (x2 - 6)(x - 7)
D. (x2 - 6)(x + 7)
Answer: D
Mathematics
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A. -
B.
C.
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