Add.(5x3y3 + 3x2y2 - x2y + xy2 + 2x + 1) + (x3y3 - x2y2 + x2y + 2x - 2)
A. 6x3y3 + 4x2y2 + x2y + 4x - 1
B. 6x3y3 + 2x2y2 + xy2 + 4x - 1
C. 6x3y3 + 3x2y2 + x2y + 1
D. 6x3y3 + 2x2y2 + 2xy2 - 1
Answer: B
Mathematics
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