Question

化简[5xy^2(x^2-3xy)-(-3x^2y^2)^3]/(5xy)^2

/是除法
^相当于平方，比如x^2，就是x的平方

Answer 1

也不知道藏没藏着因式分解

[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

Answer 2

下面那位已经回答了。。。。。。。。

Answer 3

[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