SOLUTION: Please find the solution of the exponential equation 15^x = 4 in terms of logarithms or correct to 4 decimal places. x = ?

Algebra ->  Exponential-and-logarithmic-functions -> SOLUTION: Please find the solution of the exponential equation 15^x = 4 in terms of logarithms or correct to 4 decimal places. x = ?       Log On


   



Question 427633: Please find the solution of the exponential equation 15^x = 4 in terms of logarithms or correct to 4 decimal places. x = ?
Found 2 solutions by nerdybill, ewatrrr:
Answer by nerdybill(7384) About Me  (Show Source):
Answer by ewatrrr(24785) About Me  (Show Source):
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Hi
15^x = 4
log15^x = log4
xlog15 = log4
x = log4/log15 = .5119 (to 4 decimal points)
CHECKING our Answer***
15^.5119 = 3.9998