Multiply.(x2 + 4y2 - xy)(x2 + 3xy + y2)

A. x4 + 4x3y + 2x2y2 + 11xy3 - 4y4
B. x4 + 2x3y + 2x2y2 + 11xy3 + 4y4
C. x4 + 4x3y + 8x2y2 + 11xy3 + 4y4
D. x4 + 2x3y + 2x2y2 + 13xy3 - 4y4

Answer: B

Mathematics

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