Rút gọn các biểu thức:
giúp mk vs ạ, mk cảm ơn nhiều>.<
----- Nội dung ảnh -----
Bài 1: Rút gọn các biểu thức:
a) \(\frac{x}{x-y} - \frac{1}{x-y} - \frac{1-y}{y-x}\)
b) \(\frac{x-1 - \frac{x^2 - 4}{x+1}}\)
c) \(\frac{x - 1}{2x} + \frac{2x + 1}{3x} + \frac{1 - 5x}{6x}\)
d) \(\frac{1}{x-1} - \frac{2x}{x^3 - x^2 + x - 1}\)
e) \(\frac{x+1}{2x-2} - \frac{x-1}{2x+2} + \frac{x^2}{1-x^2}\)
f) \(\frac{3x-1}{6x+2} - \frac{3x+1}{2-6x} - \frac{6x}{9x^2 - 1}\)
g) \(\frac{x}{x^2 - 2x} - \frac{\frac{x^2 + 4x}{x^3 - 4x}}{\frac{2}{x^2 + 2x}}\)
h) \(\frac{2x^2 + 1}{x^3 + 1} - \frac{x-1}{x^2 - x + 1}\)
----- Nội dung ảnh -----
Bài 1: Rút gọn các biểu thức:
a) \(\frac{x}{x-y} - \frac{1}{x-y} - \frac{1-y}{y-x}\)
b) \(\frac{x-1 - \frac{x^2 - 4}{x+1}}\)
c) \(\frac{x - 1}{2x} + \frac{2x + 1}{3x} + \frac{1 - 5x}{6x}\)
d) \(\frac{1}{x-1} - \frac{2x}{x^3 - x^2 + x - 1}\)
e) \(\frac{x+1}{2x-2} - \frac{x-1}{2x+2} + \frac{x^2}{1-x^2}\)
f) \(\frac{3x-1}{6x+2} - \frac{3x+1}{2-6x} - \frac{6x}{9x^2 - 1}\)
g) \(\frac{x}{x^2 - 2x} - \frac{\frac{x^2 + 4x}{x^3 - 4x}}{\frac{2}{x^2 + 2x}}\)
h) \(\frac{2x^2 + 1}{x^3 + 1} - \frac{x-1}{x^2 - x + 1}\)