Answer:
C. -7x⁸ + 5x⁷ - 11x + 2
Explanation:
5x⁷ - 8x + 2 - (7x⁸ + 3x)
= -7x⁸ + 5x⁷ - 8x - 3x + 2
= -7x⁸ + 5x⁷ - 11x + 2
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