Subtract.16x7 + x4y3 - 9x2y5 + 4xy6 + 8y7 from -8x7 - x4y3 + x3y4 + 9y7
A. -24x7 + x3y4 + 9x2y5 - 4xy6 - y7
B. -24x7 - 2x4y3 + x3y4 + 9x2y5 - 4xy6 + y7
C. -24x7 + x3y4 - 9x2y5 + 4xy6 + 17y7
D. -24x7 + 2x4y3 + x3y4 - 9x2y5 + 4xy6 - y7
Answer: B
Mathematics
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C. 
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