How do you solve #log(x-3)+log x=1#?
2 Answers
5
Explanation:
logarithms on the left side may be added together by multiplying argumnts, on the other side we can rewrite number 1
Logarithm is a simple function, therefore we can compare arguments
Since argument of logaritm can be only positive,
See below
Explanation:
The goal with type of problems is to get a expresion like
Let see...
Using logarithmic rules
Then
However 10=5x2 or 2x5, or negatives ones. Let say
If
Other way is operate in
Lets check the answers
By other hand
So, the only solution is