9c²d²-6c²d-36cd³+24cd²=(9c²d²-6c²d)-(36cd³-24cd²)=3c²d(3d-2)-12cd²(3d-2)=
!!!!!!!!!!!!!!!!!!!!!!!!!!
1/√9-4x=1/5, Найдем ОДЗ: х<9/4