Factor the sum or difference of two cubes.343x3 + 729

A. (7x + 9)(49x2 - 63x + 81)
B. (7x + 9)(49x2 + 63x + 81)
C. (7x - 9)(49x2 + 63x + 81)
D. (343x - 9)(x2 + 63x + 81)

Answer: A

Mathematics

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