学帮网(-1/3xy)^2•[xy(2x-y)-2x(xy-y^2)]
来源：学生作业学帮网 编辑：学帮网 时间：2024/05/14 10:28:11
(-1/3xy)^2•[xy(2x-y)-2x(xy-y^2)]
(-1/3xy)^2*[xy(2x-y)-2x(xy-y^2)]
= (-1/3xy)^2*[xy(2x-y)-2xy(x-y)]
= (-1/3xy)^2*xy(2x-y-2x+2y)
= (1/9x^2y^2)*xy^2
=1/9x
收录互联网各类作业题目，免费共享学生作业习题
慧海网手机作业共收录了 千万级 学生作业题目
来源：学生作业学帮网 编辑：学帮网 时间：2024/05/14 10:28:11
(-1/3xy)^2•[xy(2x-y)-2x(xy-y^2)]
(-1/3xy)^2*[xy(2x-y)-2x(xy-y^2)]
= (-1/3xy)^2*[xy(2x-y)-2xy(x-y)]
= (-1/3xy)^2*xy(2x-y-2x+2y)
= (1/9x^2y^2)*xy^2
=1/9x