vb 2

vb 2
5log^2(x)+5log(x)-2=0
stel 5log(x)=p
p^2+p-2=0
(p-1)(p+2)=0
p= 1 v p=-2
5log(x)=1 v 5log(x)=-2
x=5 v x= 1/25
V V
vb 2
5log^2(x)+5log(x
)-2=0
stel 5log(x)=p
p^2+p-2=0
(p-1)(p+2)=0
p= 1 v p=-2
5log(x)=1 v 5log
(x)=-2
x=5 v x= 1/25
V V