Thực hiện phép tính (quy đồng) 1) \(\frac{1}{y(x-y)} - \frac{1}{x(x-y)}\) 2) \(\frac{x+6}{2x+6} + \frac{2x+3}{x(x+3)}\) 3) \(\frac{x}{5x+5} - \frac{x}{10x-10}\) 4) \(\frac{1}{xy-y^2} - \frac{1}{x^2-xy}\) 5) \(\frac{y^2+9}{x^2-9} - \frac{3}{x^2+3x}\) 6) \(\frac{x}{y^2-xy} - \frac{y}{xy-x^2}\) 7) \(\frac{x+3}{x^2-1} - \frac{x+1}{x^2-x}\) 8) 9) \(\frac{x-12}{6x-36} + \frac{6}{x^2-6x}\)

giúp mik vs ạ mik c.onn
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Bài 3: Thực hiện phép tính (quy đồng)

1) \(\frac{1}{y(x-y)} - \frac{1}{x(x-y)}\)

2) \(\frac{x+6}{2x+6} + \frac{2x+3}{x(x+3)}\)

3) \(\frac{x}{5x+5} - \frac{x}{10x-10}\)

4) \(\frac{1}{xy-y^2} - \frac{1}{x^2-xy}\)

5) \(\frac{y^2+9}{x^2-9} - \frac{3}{x^2+3x}\)

6) \(\frac{x}{y^2-xy} - \frac{y}{xy-x^2}\)

7) \(\frac{x+3}{x^2-1} - \frac{x+1}{x^2-x}\)

8)

9) \(\frac{x-12}{6x-36} + \frac{6}{x^2-6x}\)