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(3χ-2χ+1)÷(χ₃-3χ₂-χ-1)
人气:246 ℃ 时间:2020-04-23 04:52:29
解答
(3χ-2χ+1)÷(χ³-3χ²-χ-1)
=(χ+1)÷(χ³-3χ²-χ-1)
=x^4-3x³-x²-x+x³-3x²-x-1
=x^4-2x³-4x²-2x-1
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