问题描述: 计算 (-2ab)^3(5a^2b-1/2ab^2+1/4b^3) 1个回答 分类:数学 2014-12-03 问题解答: 我来补答 (-2ab)^3(5a^2b - 1/2 ab^2 + 1/4 b^3)= -8a^3b^3(5a^2b - 1/2 ab^2 + 1/4 b^3)= (-8a^3b^3)× (5a^2b) - ( -8a^3b^3)×(1/2 ab^2) + (-8)a^3b^3) ×(1/4b^3)= - 40 a^5b^4 + 4a^4b^5 - 2a^3b^6 展开全文阅读