-18a^17b^10c^22
Объяснение:
(4/9a^14b^15b^12c^18a^9bc^13) : (2/81((-a³b^5)²c(b²c²)²)²)=
=(4/9a^23b^28c^31) : (2/81(-a^6b^10)c(b^4c^4)²)=
=(4/9a^23b^28c^31) : ((-2/81a^6b^10)c(b^8c^8))=
=(4/9a^23b^28c^31) : (-2/81a^6b^10b^8c^9)=
=(4/9a^23b^28c^31): (-2/81a^6b^18c^9)=
=4/9*(-81/2) a^17b^10c^22= -18a^17b^10c^22
