Intai, punem conditia x>0( tine minte, intotdeauna trebuie pusa conditia ca ce e sus la logaritm sa fie mai mare ca 0, altfel logaritmul nu are sens)
log2log1/2log9 x = log2 1
log1/2 log9 x =1
log1/2 log9 x = log1/2 1/2
log9 x = 1/2
log9 x= log9 3
deci x=3
Sper ca ai inteles.
