(－y3)4÷y3
a2n+1÷a2n-1
(x2)n+1÷x2n
102×105÷10-1
4×2-2
101-3()÷() 331312(－)?(－) 2224－(a+b)?(a+b)
(－3a5)3
1412(－x)÷(－x) 22(－2a3?b2)3
b?(－3b)2(b3)2
(－y2)4÷y4
a2n+1÷a3n-1
(x2)n+1÷x3n
105×102÷10-5
64×2-3
101-2()÷() 331412(－)?(－) 2253－(a+b)?(a+b)
(－2a2)2
1413(－x)÷(－x) 22(－3a2?b2)2
b?(－3b)2(b2)2
(－y2)4÷y6
a3n+1÷a3n-1
(x3)n+1÷x4n
105×104÷10-4
8×2-5
101-3()÷() 33