Question

Дроби. Решите пожалуйста❤❤

Answer 1

3/х-3 - х+15/(х-3)(х+3)-2/х=
3(х+3)•х-(х+15)•х-2(х-3)(х+3)/(х-3)(х+3)х=
3х^2+9х-х^2-15х-2х^2-6х+6х+18/(х-3)(х+3)х=
3х^2-х^2-2х^2+9х-15х-6х+6х+18/(х-3)(х+3)х=
=-6х+18/(х-3)(х+3)=18-6х/(х-3)(х+3)=
6(3-х)/(х-3)(х+3)=-6(х-3)/(х-3)(х+3)=-6/х+3