$3 \cdot 3^{14}$3 \cdot 3^{14}

$3^{9} \cdot 3^{6}$3^{9} \cdot 3^{6}

$3^{17}:9$3^{17}:9

$\left(3^{5}\right)^{3}$\left(3^{5}\right)^{3}

$9^{15}:3$9^{15}:3