Question 973018
4^lnx =8

2^2lnx =2^3
2 ln x =3
ln x = 3/2
raise everything to e power, because e^lnx =x

e^ln x= e ^(3/2)
x=4.48

check
4^ln (4.48)= 4^ 1.5 = 4^(3/2)=8.