\(55^{2x}\div11^{2x}=625\)
\(\left(55:11\right)^{2x}=625\)
\(5^{2x}=5^4\Rightarrow2x=4\Rightarrow x=2\)
Ta có \(55^{2x}\div11^{2x}=625\)
\(\Rightarrow\left(55\div11\right)^{2x}=625\)
\(\Rightarrow5^{2x}=5^4\)
\(\Rightarrow2x=4\)
\(\Rightarrow x=2\)
\(55^{2x}\div11^{2x}=625\)
\(\Leftrightarrow\left(55\div11\right)^{2x}=625\)
\(\Leftrightarrow5^{2x}=5^4\)
\(\Leftrightarrow2x=4\)
\(\Rightarrow x=2\)