Ребята Пожалуйста помогите решить,...
1) (6b-13)(6b+13) 2) (2vu(2u-7))/8u^2= =(v(2u-7)/4 3) 14uv/(21v^2(u-1)= =2u/(3v(u-1) 4) (2u(2uv-3)/3uv= =(2(2uv-3))/3v 5) 21mn/(14m(5m-3n)= =3n/(2(5m-3n) 7) 144d^6-24d^3+1 8) 144-m^2 9) 196-p^2