Question

спростите пожалуйста

Answer 1

$frac{3}{x-5}- frac{2}{x}+ frac{x-35}{x^2-25}= frac{3x^2+15x-2x^2+50+x^2-35x}{x(x^2-25)}=\\ frac{2x^2-20x+50}{x(x^2-25)}= frac{2(x^2-10x+25)}{x(x^2-25)}= frac{2(x-5)^2}{x(x-5)(x+5)}=\\ frac{2(x-5)}{x(x+5)}= frac{2x-10}{x^2+5x}$