Решение.
-18(х)^8 * (u)^5 -18(х)^8 * (u)^5 -(х)^8 * (u)^5
____________ = ____________ = ____________ =
36(х)^6 * (u)^9 2*18(х)^6 * (u)^9 2(х)^6 * (u)^9
-(х)^8 * (u)^5 -(х)^(8-6) * (u)^(5-9) -(х)^(2) * (u)^(-4)
= __________ = ________________ = ______________ =
2(х)^6 * (u)^9 2 2
-(х)^(2)
= _______ .
2(u)^(4)