Question

Упростить: $(frac{1}{x-y} - frac{1}{x+y}) + frac{2}{3x-3y}$ по действиям пожалуйста.

Answer 1

1)1/(x-y) -1/(x+y)=(x+y-x+y)/(x²-y²)=2y/(x²-y²)
2)2y/(x²-y²) +2/3(x-y)=(6y+2x+2y(/3(x²-y²)=(2x+8y)/3(x²-y²)