SOLUTION: 2^3x=128

Algebra ->  Exponential-and-logarithmic-functions -> SOLUTION: 2^3x=128      Log On


   

Question 62866: 2^3x=128
Answer by funmath(2933) About Me  (Show Source):
You can put this solution on YOUR website!
I am assuming that the exponent is 3x, let me know if that isn't what you meant.
2%5E%283x%29=128
2%5E%283x%29=2%5E7
3x=7
3x%2F3=7%2F3
highlight%28x=7%2F3%29
Check:
2%5E%283%287%2F3%29%29=128
2%5E%2821%2F3%29=128
2%5E7=128
128=128 We're right!!!
Happy Calculating!!!!