TeX джерело:

\frac{{{x^2} - 4}}{{3x(x - 2)}} \cdot \frac{{{x^2}}}{{2 + x}} = \frac{{(x + 2)(x - 2) \cdot {x^2}}}{{3x(x - 2) \cdot (2 + x)}} = \frac{x}{3}