\(P=\frac{3^{11}\cdot11+3^{11}\cdot21}{3^9\cdot2^5}=\frac{3^{11}\cdot\left(11+21\right)}{3^9\cdot32}=\frac{3^{11}\cdot32}{3^9\cdot32}=3^2=9\)
\(P=\frac{3^{11}.11+3^{11}.21}{3^9.2^5}\)
\(=\frac{3^{11}.\left(11+21\right)}{3^9.32}\)
\(=\frac{3^{11}.32}{3^9.32}\)
\(=3^2=9\)