(-1/4x^2+12x^3y^2-8x^4y)/(-1/2x^2y)=?
人气：140 ℃ 时间：2020-09-16 14:12:53
解答
(-1/4x^2+12x^3y^2-8x^4y)/(-1/2x^2y)
=1/(2y)-24xy+16x^2
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