Упростите выражение: x^22*(x^18:x^9).

\[x^{22} \cdot \left( x^{18}\ :x^{9} \right) = x^{22} \cdot x^{18 - 9} =\]

\[= x^{22} \cdot x^{9} = x^{22 + 9} = x^{31}.\]