SOLUTION: Solving log(x^2-15)=1
Do not know how to solve for this. The answer is +or- 5, but don't know how to get that answer.
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Question 923675: Solving log(x^2-15)=1
Do not know how to solve for this. The answer is +or- 5, but don't know how to get that answer.
Found 2 solutions by Alan3354, MathLover1:
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
log(x^2-15)=1
log(x^2-15)= log(10)
x^2-15 = 10
x^2 = 25
etc
Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!
...you have log base , then we can write as because
...if log same, then is same too
...solve for
so, or
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