\(\left(5^x\right)^2=25^{11}\)\(\Leftrightarrow5^{2x}=\left(5^2\right)^{11}\)\(\Leftrightarrow5^{2x}=5^{22}\)\(\Leftrightarrow2x=22\)\(\Leftrightarrow x=\dfrac{22}{2}\)\(\Leftrightarrow x=11\)Vậy x=11 Câu trả lời: \(\left(5^x\right)^2=25^{11}\)\(\Leftrightarrow5^{2x}=\left(5^2\right)^{11}\)\(\Leftrightarrow5^{2x}=5^{22}\)\(\Leftrightarrow2x=22\)\(\Leftrightarrow x=\dfrac{22}{2}\)\(\Leftrightarrow x=11\)Vậy x=11