Subtract.(4x2y - 2xy - 3xy2) - (5xy + 3xy2 + 6x2y)
A. -2x2y - 6xy2 - 7xy
B. -2x2y + 6xy2
C. -2x2y + 6xy2 - 7xy
D. -5x2y - 3xy2 - 7xy
Answer: A
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