Question

log2(9-2x)=2

Срочно надо

Answer 1

9-2х=2^2 
9-2х=4 
2х=5
х=52 

Answer 2

$log_2(9-2x)=2 \ 2^2=9-2x \ 9-2x=4 \ 2x=5 \ x=2,5$