Multiply. Assume that all variables represent natural numbers.-7x2yn(8xyn+1 - 3)

A. -56x2y2n+1 + 21x2yn
B. -56x3y2n + 21x2yn
C. -56x3yn2+1 + 21x2yn
D. -56x3y2n+1 + 21x2yn

Answer: D

Mathematics

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