y^4/5-x^4/5 ( дробь ) y^2/5-x^2/5 помощь

Question

y^4/5-x^4/5 ( дробь ) y^2/5-x^2/5 помощь

Answer 1

(y^4/5-x^4/5) /(y^2/5-x^2/5)=(y^2/5+x^2/5)*(y^2/5-x^2/5)/(y^2/5-x^2/5)=
=y^2/5+x^2/5