SOLUTION: log(2) (x^2 - 1) = 3

Algebra ->  Logarithm Solvers, Trainers and Word Problems -> SOLUTION: log(2) (x^2 - 1) = 3      Log On


   

Question 172821: log(2) (x^2 - 1) = 3
Answer by nerdybill(7384) About Me  (Show Source):
You can put this solution on YOUR website!
log(2) (x^2 - 1) = 3
(x^2 - 1) = 2^3
(x^2 - 1) = 8
x^2 = 9
x = (+-)3
.
that's plus or minus 3