SOLUTION: what is the value of x? 4^20+4^20=2^x

Algebra ->  Exponential-and-logarithmic-functions -> SOLUTION: what is the value of x? 4^20+4^20=2^x      Log On


   

Question 177703: what is the value of x?
4^20+4^20=2^x
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
what is the value of x?
4^20+4^20=2^x
-----------
2(4^20) = 2^x
2(2^2*20) = 2^x
2*2^40 = 2^x
2^41 = 2^x
x = 41
===========
Cheers,
Stan H.