Answer:
-3x⁴ - x³ - 10x² + 8x -2
Explanation:
(3x⁴ - 10x² + 5x + 2) - (6x⁴ + x³ - 3x + 4)
3x⁴ - 10x² + 5x + 2 - 6x⁴ - x³ + 3x - 4)
combine like terms
3x⁴ and - 6x⁴ = - 3x⁴
5x and 3x = 8x
2 and -4 = -2
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