Question

Можете решить вроде бы не чего сложного, я не знаю;D

Answer 1

7/(x²-y²) - 2/(xy-x²) - 12/(x²+xy)=
=7/(x²-y²) - 2/x(y-x) - 12/x(x+y)=
=7/(x+y)(x-y) +2/x(x-y) - 12/x(x+y)=
=(7x+2(x+y) -12(x-y)/x(x+y)(x-y)=
=(7x+2x+2y-12x+12y)/x(x+y)(x-y)=
=(-3x+14y)/x(x²-y²)

Answer 2

Решение на фото!!!!!!!!!!!!!!!