5^x:5^2=5^3
5^x=5^2.5^3
5^x=5^(2+3)
x=2+3
x=5
Vậy.........
--------------Hok tốt--------------- ^_<
\(5^x:5^2=125\)
\(\Leftrightarrow5^x:5^2=5^3\)
\(\Rightarrow x-2=3\)
\(\Rightarrow x=2+3\)
\(\Rightarrow x=5\)
Vậy \(x=5\)
\(5^x:5^2=125\)
\(\Rightarrow5^x:5^2=5^3\)
\(\Rightarrow x-2=3\)
\(\Rightarrow x=2+3\)
\(\Rightarrow x=5\)
\(5^x\div5^2=125\)
\(\Rightarrow5^x\div5^2=5^3\)
\(\Rightarrow x-2=3\)
\(\Rightarrow x=2+3\)
\(\Rightarrow x=5\)
Vậy x = 5