1) =2b(4y+7)+11(4y+7)=(4y+7)(2b+11)
2) =6x(1-11)=6х*(-10)=-60х
3) =4b(3a+13)
4) =(5z+7)(2b-11)
1) =9(y-5my-11m)
2) =n²x(2n+n³x-17x²)
3) =3d²y(2d+d²y+3y²)
1) =2b(4y+7)+11(4y+7)=(4y+7)(2b+11)
2) =6x(1-11)=6х*(-10)=-60х
3) =4b(3a+13)
4) =(5z+7)(2b-11)
1) =9(y-5my-11m)
2) =n²x(2n+n³x-17x²)
3) =3d²y(2d+d²y+3y²)