Multiply.(3x2 + y2 - 3xy)(x2 + 3y2 - xy)
A. 3x4 + 13x2y2 - 6x3y + x3
+ 3y4 + xy3 - 9x2y3
B. 3x4 + 13x2y2 - 6x3y + 3y4 - 10xy3
C. 3x4 - 13x2y2 + 6x3y - 3y4 + xy3 - 9x2y3
D. 3x4 - 13x2y2 + 6x3y - x3
- 3y4 - 10xy3
Answer: B
Mathematics
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