faci pe intervale...
cum ai ln x => x >0
i) daca x e(0,e^(-4)) =>
=> (| x | − 3) <0
=>(ln x + 4)<0 =>(| x | − 3)(ln x + 4) >0
ii)daca x =e^(-4) =>(| x | − 3) (ln x + 4)=0
iii)daca x e (e^(-4),3) =>
=>(| x | − 3)<0
=>(ln x + 4)>0 =>(| x | − 3)(ln x + 4) < 0
iv)daca x=3 => (| x | − 3) (ln x + 4)=0
v) daca x e(3,+inf) =>(| x | − 3)(ln x + 4)>0
din i,ii,iii,iv,v => (| x | − 3)(ln x + 4) < 0 <=> x e(e^(-4),3)
