Выполните действия: 3p/(3p+2q)-(9p^2)/(9p^2+12pq+4q^2).

\[\frac{3p}{3p + 2q} - \frac{9p^{2}}{9p^{2} + 12pq + 4q^{2}} =\]

\[= \frac{3p^{\backslash 3p + 2q}}{3p + 2q} - \frac{9p^{2}}{(3p + 2q)^{2}} =\]

\[= \frac{6pq}{(3p + 2q)²}\]