(4x的平方-x的3次方-2x)除以2x-(x-1)的平方

2025-04-19 11:54:53
推荐回答(3个)
回答1:

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回答2:

(4x的平方-x的3次方-2x)除以2x-(x-1)的平方
=(4x²-x³-2x)÷2x-(x-1)²
=2x-2分之1x²-1-(x²-2x+1)
=2x-2分之1x²-1-x²+2x-1
=4x-2分之3x²-2
希望对你有帮助

回答3:

(4x²-x³-2x)÷2x-(x-1)²
=[2x(2x-x²/2-2)]÷2x-(x²-2x+1)
=(2x-x²/2-2)-(x²-2x+1)
=2x-x²/2-2-x²+2x-1
=-3x²/2+4x-3