题目内容
a3m÷________=am+1.
a2m-1
am·a2m·a3m=________
(a5)3·a4________,(am)2·a3m=________,(x2m)2·(x3)n=________.
已知am=9,an=27,则a3m-2n=________.
已知am=4,an=8.求a3m-2n的值.