Rut gon:

\(E=\left(\dfrac{3x+2}{x^2-2x+1}-\dfrac{6}{x^2-1}-\dfrac{3x-2}{x^2+2x+1}\right)\cdot\dfrac{x^2+2x+1}{5x^2+5}\)

Rut gon :

\(H=\left(\dfrac{1}{x+1}-\dfrac{3}{x^3+1}+\dfrac{3}{x^2-x+1}\right):\dfrac{3x^2-3x+3}{\left(x+1\right)\left(x+2\right)}-\dfrac{2x-2}{x^2+2x}\)

Rut gon:

\(A=\dfrac{1-2x}{2x}+\dfrac{3x-2}{2x-1}+\dfrac{3x-2}{2x-4x^2}\)

Rut gon:

\(A=1-\left(\dfrac{2x^2+x-1}{1-x^2}+\dfrac{2x^3-x+x^2}{1+x^3}\right):\dfrac{\left(1-x\right)\left(x^2-x\right)}{2x-1}\)