# calculus

posted by .

solve the logarithmic equation. Be sure to reject any value of x that is not in the domain of the orginal logarithmic expression.

In square root x+7=1

I get this far and then get stuck, can you help me?

In square root x+7=1
e=square root x+7
e^2=x+7

x+7=e^2
x=e^2-7

• calculus -

looks good to me.

• calculus -

should I go farther or is that it. I don't know it that it the final answer--I think that is what is bothering me?

• calculus -

the answer is exact. Going any further would just be to approximate it with a decimal. e^2-7 is just as good as π/4 or √23-ln(3).

It's just a number.

## Similar Questions

2. ### algebra homework

please check my answers. Solve the logarithmic equation. Be sure to reject any value that is not in the domain of the original logarithmic expressions. Give the exact answer. ln sqrt x+6 = 9 i got {e^9-6} log (x + 4) = log (5x - 5) …
3. ### calculus

Please help me? ln(x+1)-ln(x-2)=ln(5) 1. Solve equation by setting up algebraically. 2. Use appropriate properties of Logarithm to reduce the number of logarithmic terms to only one. 3. Solve logarithmic equation.
4. ### pre-calculus

solve the following logarithmic equation. Be sure to reject any value of x that is not in thedomain of the orginal logarithmic expression. Give the exact answer. log3(x+8)=4 The three actually drops down a little below the g. Can someone …
5. ### pre-calculus

solve the logarithmic equation. be sure to reject any value of x that is not in the domain of the orginal logarithmic expression. In square root of x+2=2 (If I try to make the square root sign it will not come out right so I wrote …
6. ### 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 …
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 …
8. ### calculus

solve the logarithmic equation. be sure to reject any value of x that is not in the domain of the orginal logarithmic expression. In square root x+7=2 what is the exact solution?
9. ### calculus

solve the logarithmic equation. Be sure to reject any value of x that is not in the domain. In square root x+7=1 x= ?
10. ### Algebra

Solve the logarithmic equation. Be sure to reject any value of x that is not in the domain of the original logarithmic expression. ln ã(x+4)=1 What is the exact solution?

More Similar Questions