问题描述: 3a^2b(1/3ab+b^2)+(a^2b-ab^2)乘(-5ab) 求你们了 1个回答 分类:数学 2014-10-04 问题解答: 我来补答 3a^2b(1/3ab+b^2)+(a^2b-ab^2)×(-5ab)=a+3a^2b^2-5a^3b^3+5a^2b^3 再问: 然后 答案呢亲 再答: 3a^2b(1/3ab+b^2)+(a^2b-ab^2)×(-5ab)=a+3a^2b^3-5a^3b^2+5a^2b^3=a+8a^2b^3-5a^3b^2=a(1+8ab^3-5a^2b^2) 展开全文阅读