(-1/2x^3-3/2xy+1/4y^2)(-2xy^2)^2计算
问题描述：
(-1/2x^3-3/2xy+1/4y^2)(-2xy^2)^2计算
答
(-1/2x^3-3/2xy+1/4y^2)(-2xy^2)^2
= (-1/2x^3-3/2xy+1/4y^2)(4x^2y^4)
=-2x^5y^4-6x^3y^5+x^2y^6
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