SOLUTION: 2^x = 8 I know the answer is 3, but how do you solve for x? x = ?

Algebra ->  Exponents -> SOLUTION: 2^x = 8 I know the answer is 3, but how do you solve for x? x = ?      Log On


   

Question 153116: 2^x = 8
I know the answer is 3, but how do you solve for x?
x = ?
Answer by jojo14344(1513) About Me  (Show Source):
You can put this solution on YOUR website!
2^x = 8
Take natural logarithm to bring down exponent X:
2%5Ex=8
xln2=ln8
x=ln8%2Fln2=3
Thank you,
Jojo