Выражение ! x^2+xy/x^2-y^2*x^3-y^3/xy(x+y)

Best Answerhassan naqvi answered 3 years agox^3 - xy^2 + x^(2)y - y^3 
deal it as 

[x^3 - xy^2 ]+[ x^(2)y - y^3] 

x[x^2 - y^2 ]+ y[x^2 - y^2] 

taking x^2 - y^2 as common we can write 

(x^2 - y^2)(x+y) 

x^2 - y^2=(x+y)(x-y) 

so it can be written as 

(x+y)(x-y)(x+y) or (x+y)^2(x-y)