Factor completely.(m + n)b2 + (m + n)b + 6(m + n)

A. (m + n)(b + 6)(b - 6)
B. (m + n)(b2 + b + 6)
C. (m + n)(b2 - b + 6)
D. b(m + n)(b + 7)


Answer: B

Mathematics

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