Multiply.(x2 + 6y2 - xy)(x2 + 4xy + y2)
A. x4 + 3x3y + 3x2y2 + 25xy3 - 6y4
B. x4 + 5x3y + 3x2y2 + 23xy3 - 6y4
C. x4 + 3x3y + 3x2y2 + 23xy3 + 6y4
D. x4 + 5x3y + 11x2y2 + 23xy3 + 6y4
Answer: C
Mathematics
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