问题
填空题
已知am=3,an=2,则a3m-2n=______.
答案
∵am=3,an=2,
∴a3m-2n=a3m÷a2n
=(am)3÷(an)2,
=33÷22
=27÷4
=
,27 4
故答案为
.27 4
已知am=3,an=2,则a3m-2n=______.
∵am=3,an=2,
∴a3m-2n=a3m÷a2n
=(am)3÷(an)2,
=33÷22
=27÷4
=
,27 4
故答案为
.27 4