Răspuns :
[tex]\displaystyle\bf\\\text{\bf Daca avem egalitate intre doua puteri cu bazele egale atunci }\\\text{\bf exponentii sunt egali.}\\\\3^{2x+1}=3^5\\\\3=3\\\\\implies~2x+1=5\\\\2x=5-1\\\\2x=4\\\\x=\frac{4}{2} \\\\\boxed{\bf~x=2}[/tex]
[tex]\displaystyle\bf\\\text{\bf Daca avem egalitate intre doua puteri cu bazele egale atunci }\\\text{\bf exponentii sunt egali.}\\\\3^{2x+1}=3^5\\\\3=3\\\\\implies~2x+1=5\\\\2x=5-1\\\\2x=4\\\\x=\frac{4}{2} \\\\\boxed{\bf~x=2}[/tex]