已知3^2m=6,3n=8,求3^4m-2n的值。

2025-05-18 12:19:17
推荐回答(2个)
回答1:

3^4m-2n
=3^4m÷3^2n
=(3^2m)^2÷(3^n)^2
=6^2÷8^2
=9/16

回答2:

原式=3^4m÷3^2n
=(3^2m)²÷(3^n)²
=6²÷8²
=9/16