Bài 2:
\(b,\Rightarrow5^x\left(5^2+1\right)=3250\\ \Rightarrow5^x=\dfrac{3250}{26}=125-5^3\\ \Rightarrow x=3\\ e,\Rightarrow3025=\left(x+1\right)^2\\ \Rightarrow\left[{}\begin{matrix}x+1=55\\x+1=-55\end{matrix}\right.\Rightarrow\left[{}\begin{matrix}x=54\\x=-56\end{matrix}\right.\)