问题描述: (-1/3xy)∧2*[3xy(2x-y)-3x(2xy-4y∧2)] 1个回答 分类:数学 2014-10-10 问题解答: 我来补答 (-1/3xy)∧2*[3xy(2x-y)-3x(2xy-4y∧2)]解得:1/9x*x*y*y*[3xy(2x-y)-6xy(x-2y)]==(1/9x*x*y*y*)*3xy*[2x-y-2(x+2y)]==(1/9x*x*y*y*)*3xy*(2x-y-2x+4y)==(1/3xy)*3y==1/x 展开全文阅读