Question

решить уровнения
(1/3)^х-2=81
4^х=16
6^х=6^2х-4

Answer 1

(1/3)^х-2=81
x-2=-4
x=-2

4^х=16
x=2

6^х=6^2х-4
x=2x-4
2x-x=4
x=4