Выполните вычитание x^2/(x^2-49)-x/(x+7).

\[\frac{x^{2}}{x^{2} - 49} - \frac{x^{\backslash x - 7}}{x + 7} = \frac{x^{2} - x^{2} + 7x}{(x - 7)(x + 7)} =\]

\[= \frac{7x}{x^{2} - 49}\]