Algebra
posted by Kyle .
how would you solve these two equations.
ln x + ln(x+1)=1
ln(x+5) = ln(x1)  ln(x+1)

put to work the properties of logs.
ln x + ln(x+1) = 1
ln(x(x+1)) = 1
x(x+1) = e
x^2 + x  e = 0
then use the quadratic formula
ln(x+5) = ln(x1)/ln(x+1)
ln(x+5) = ln((x1)/(x+1))
x+5 = (x1)/(x+1)
x^2+6x+5 = x1
x^2+5x+6 = 0
...
Respond to this Question
Similar Questions

algebra 1
I'm stuck on this problem. Can you help? 4x9y=1 x + 2y =4 WHat is x and y? 
algebra
how would i find an equation of a line that goes through points(1,6) and (3,10)? 
Algebra
I have been asked a question regarding inconsistency. How would I use these equations to solve the questions? 
College Algebra
Solve the system of equations with ROWOPS program. I know how to do the first step but after that it gets difficult for me, this is the system of equations: 3x + y  z = 1 x + 2y  z = 0 2x  y + z = 4 I used to be able to do these … 
Algebra
Translate each situation to a system of equations. Do not attempt to solve. Paint Town sold 45 paintbrushes, one kind at $8.50 each and another at $9.50 each. In all, $398.75 was taken in for the brushes. How many of each kind were … 
Algebra
Translate each problem into a system of equations. DO NOT attempt to solve. JUST write the equation(s). Mountainside Fleece sold 40 neckwarmers. Solid color neckwarmers sold for $9.90 each and print ones sold for $12.75 each. In all, … 
Algebra
Translate to a system of equations. DO NOT SOLVE. A nontoxic scouring powder is made up of 4 parts baking soda and 1 part vinegar. How much of each ingredient is needed for a 16oz mixture? 
Math
How do I write the Symmetric Equation of a line given the following parametric equations: (where t is a scalar) x=0t y=0t z=1+1t I know normally I would solve each equation for t and set the equations equal to one another. However, … 
Math
How do I write the Symmetric Equation of a line given the following parametric equations: (where t is a scalar) x=0t y=0t z=1+1t I know normally I would solve each equation for t and set the equations equal to one another. However, … 
Algebra
To solve the following system of equations by elimination, which step would best to perform first?