PreCalculus
posted by Kelsey .
I need help solving this logarithmic equation: ln x + ln (x+3) = 1.
I know ln x + ln (x+3)=ln [x(x+3)] and that is ln x^2 + 3x when broken down. Then you have to get rid of ln by taking the natural base e of both sides so in the end you have x^2+3x = e^(1). That's when I got stuck.
Respond to this Question
Similar Questions

Pre Calculus 12
Im going over my pre calculus 12 exam, and I need help with one question from the chapter Transformations of graphs and stuff. Combining Transformations 2y = f(5x10)+8 The original points are (4,6) and the new points I got by translating … 
calculus
Please help me? ln(x+1)ln(x2)=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. 
PreCalculus need help in an Hour before test
y=f(x+5/2) I timesd x+5 by 2 to get rid of 2 at the bottom and timesd y by 2. Then to get rid of 2 from y i divided it, and i got this. y=1/2f(x+5) however my teacher got y=f(1/2(x+5)) what did i do wrong? 
precalculus
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 … 
precalculus
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 … 
precalculus
Change the logarithmic expression to an equivalent expression involving an exponent. Log7343=x the 7 should drop down lower than the 343. 
Calculus
I need help solving the integral of t * e^3t dt I know that I have to solve using integration by parts and so I've let u=t to rid of dt and dv=e^3t which I believe would yield (1/3) * e^3t as v. Am I doing this correctly? 
PreCalculus
How do I solve these equations? I need to create an equation given the characteristics? 
Logarithmic Function
Could you please verify and calculate the following logarithmic equation: y = 2log_2(2)(x+2)4 , in which x=2. So the equation would become: y = 2log_2(2)(2+2)4 Solving... y = 2log_2(2)(4)4 y = 2log_2(8)4 y = 2(3)4 y = 64 y = … 
Pre Calculus
Write the equation 5^2= 25 in logarithmic form. a. log255=2 b. log25=25 c. log52=25 d. log225=5 e. log525=2