SOLUTION: Please help and show all work step by step. I have tried this and the answer I came up with was 11 but it was wrong.
Find the largest value of x that satisfies:
log_5(x^2)-lo
Algebra.Com
Question 998780: Please help and show all work step by step. I have tried this and the answer I came up with was 11 but it was wrong.
Find the largest value of x that satisfies:
log_5(x^2)-log_5(x+4)=7
Found 2 solutions by josgarithmetic, MathLover1:
Answer by josgarithmetic(39618) (Show Source): You can put this solution on YOUR website!
Use better notation. Is base 5?
Another one very similar was solved a short time ago today.
Pure text before rendering tags, log(5,(x^2))-log(5,(x+4))=7
Put into exponential form.
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http://www.algebra.com/algebra/homework/Exponential-and-logarithmic-functions/Exponential-and-logarithmic-functions.faq.question.998769.html
Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!
......change the base
....if log same, than we have
.....use quadratic formula
solutions:
=>
=>
the largest value of that satisfies is:
=>
approximately
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