也不知道藏没藏哗腔着银芦扮因式分锋灶解
[5xy^2(x^2-3xy)-(-3x^2y^2)^3]/(5xy)^2
=5xy.y(x^2-3xy)-(-3x^2y^2)^2(-3x^2y^2)/(5xy)^2
=yx^2-3xy^2+27x^6y^6/5xy
=xy(x-3y=27x^5y^5)/5xy
=x-3y+27x^5y^5/5
此答案仅供参考
下面那位已经回答了。。。。。。。。
[5xy^2(x^2-3xy)-(-3x^2y^2)^3]/誉伍(5xy)^2
=5xy.y(x^2-3xy)-(-3x^2y^2)^2(-3x^2y^2)/庆耐或(5xy)^2
=yx^2-3xy^2+27x^6y^6/5xy
=xy(x-3y=27x^5y^5)/5xy
=x-3y+27x^5y^5/亩源5