Question

Помогите решить номер!!!

Answer 1

1)=3а^3/2б^3
2)=5х(3-2у)/5ху=(3-2у)/у
3)=(м-2)(м+2)/2(м-2)=(м+2)/2
4)=(5-а)(5+а)/(а-5)^2=(5+а)/(5-а)