# college algebra

posted by .

write the expression as a single logarithm
1. In(x/x*2)+In(x+2/x)-In(x^2-4)

solve the following logarithmic equation.
2. log_9(x-2)+log_9(x+1)=2

what is the exact solution?
What is the decimal approximation for the solution when rounded three decimal places.

• college algebra -

I have a math question what is a 5/6.a-1/2

## Similar Questions

2. ### precalc/trig

Solve the Logarithmic equation algebraically. Give an Exact Answer and an approximation for x to four decimal places. 20 log(2x+2)=45
3. ### algebra

solve the exponential equation Express in exact form. 5e^xlog_9 = 11 Is x = (ln11-ln5/log_9 exact form?
4. ### Math

Solve the exponential equation. Use a calculator to obtain a decimal approximation, correct to two decimal places, for the solution. 7^4x = 4.9
5. ### pre-calculus

solve the following logarithmic equation. be sure to reject any value of x that is not in the domain of the original logarithmic expression. give the exact answer. then, use the calculator to obtain a decimal appromiation, correct …
6. ### college algebra

solve the following exponential equation. 7^x=8 a. x= Write in exact solution b. then with that answer move the decimal 3 points over
7. ### calculus

solve the following logarithmic equation. Be sure to reject any value of x that is not in the domain of orginal expression. then in the solution set round to two decimals places. Inx=8 I get e^8 But am having a hard time with rounding …