Question

Сроооочно умоляю!!!!!

Answer 1

Ответ:

Объяснение:

1/(u+y)+3uy/((u+y)(u^2+uy+y^2)=((u^2+uy+y^2)+3uy)/((u+y)(u^2+uy+y^2))=

=u^2+2uy+y^2+2uy/(u+y)(u^2+uy+y^2)=(u+y)^2/(u+y)(u^2+uy+y^2)=

=u+y/u^2+uy+y^2