SOLUTION: I got x=log9 (1/81) I have tried it this way: log9 1 - log9 3^4 = log9 1 - 4log9 3 = but the task does not only state log9 (1/81) it says x=... so i am not sure if

Algebra ->  Average -> SOLUTION: I got x=log9 (1/81) I have tried it this way: log9 1 - log9 3^4 = log9 1 - 4log9 3 = but the task does not only state log9 (1/81) it says x=... so i am not sure if      Log On


   



Question 193136: I got x=log9 (1/81)
I have tried it this way:
log9 1 - log9 3^4 =
log9 1 - 4log9 3 =
but the task does not only state log9 (1/81) it says x=...
so i am not sure if I am going the correct way!
could you help me on this one?

Answer by nerdybill(7384) About Me  (Show Source):
You can put this solution on YOUR website!
x=log9 (1/81)
x = log9(1) - log9(81)
Since it is "base 9", write in terms of powers of 9:
x = log9(9^0) - log9(9^2)
x = 0 - 2
x = -2