Add or subtract horizontally.(5x5 - 5x4 + 8x2 - 9x + 10) - (15x5 + x3 - 4x2 - 3x + 1)
A. 10x5 - 5x4 - x3 - 5x + 10
B. -10x5 - 5x4 - x3 + 12x2 - 6x + 9
C. -10x5 - 5x4 + x3 + 11x2 + 6x - 9
D. -10x5 - 5x4 + x3 + 4x2 - 12x + 11
Answer: B
Mathematics
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8
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