Subtract.(3x3y3 + 6x2y2 - x2y + xy2 + 4x + 5) - (- x3y3 + x2y2 - x2y - 4x + 10)
A. 4x3y3 + 7x2y2 - 2x2y + xy2 + 15
B. 4x3y3 + 5x2y2 + xy2 + 8x - 5
C. 4x3y3 + 5x2y2 + 2xy2 - 5
D. 4x3y3 + 7x2y2 + x2y + 8x - 5
Answer: B
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