\(162:3^{2x-4}=2\)
\(\Rightarrow3^{2x-4}=162:2\)
\(\Rightarrow3^{2x-4}=81\)
\(\Rightarrow3^{2x-4}=3^4\)
\(\Rightarrow2x-4=4\)
\(\Rightarrow2x=4+4\)
\(\Rightarrow2x=8\)
\(\Rightarrow x=8:2\)
\(\Rightarrow x=4\)
Vậy \(x=4\)
162÷32X-4=2
32x-4 = 162:2
32x - 4 = 81
ta có: 34 = 81
=> 2x - 4 = 4
=> 2x = 4+4=8
=> x= 8:2
x = 4