Răspuns:
324/5^x=(9×2)^2 <=> 324/5^x=324 <=> 5^x=324/324 <=> 5^x=1 <=> x=0
324 : 5^x = 18^2
325 : 5^x = 324
324 * 5^-x = 324
5^-x = 1
-x = 0 deci x=0
