SOLUTION: What is logx+log(x-1)=log2? Solve for x
Algebra
->
Logarithm Solvers, Trainers and Word Problems
-> SOLUTION: What is logx+log(x-1)=log2? Solve for x
Log On
Algebra: Logarithm
Section
Solvers
Solvers
Lessons
Lessons
Answers archive
Answers
Click here to see ALL problems on logarithm
Question 481023
:
What is logx+log(x-1)=log2? Solve for x
Answer by
stanbon(75887)
(
Show Source
):
You can
put this solution on YOUR website!
logx+log(x-1)=log2
------------------------
log[x(x-1)] = log(2)
----
x(x-1) = 2
x^2-x-2 = 0
----
Factor:
(x-2)(x+1) = 0
Positive solution:
x = 2
=================
Cheers,
Stan H.