SOLUTION: log4 (x+9)=2 logx 64=2 log2 8=x 2*5^x/4 = 250

Algebra ->  Exponential-and-logarithmic-functions -> SOLUTION: log4 (x+9)=2 logx 64=2 log2 8=x 2*5^x/4 = 250      Log On


   

Question 614564: log4 (x+9)=2
logx 64=2
log2 8=x
2*5^x/4 = 250
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi

  4^2 = x+9 , x = 7

   x^2 = 64, x = 8

    2^x = 8  , 2^x = 2^3,  x = 3

2%2A5%5E%28x%2F4%29+=+250 , 5^(x/4) = 125, 5^(x/4) = 5^3 , x/4 = 3, x = 12