3^x=81/1 (-2)^x=-32/1 3^x=27/1 0.375^6x(-3/4)^6

问题描述:

3^x=81/1 (-2)^x=-32/1 3^x=27/1 0.375^6x(-3/4)^6

1、x=-4
2、x=-5
3、x=-3
4、x=2