SOLUTION: How do I solve these problems? 1. ln(5 - x) + ln(-3 - x) = ln(1 - 8x) 2. logsubscript8(x + 2) +logsubscript8(x + 4) = logsubscript8 8

Algebra ->  Logarithm Solvers, Trainers and Word Problems -> SOLUTION: How do I solve these problems? 1. ln(5 - x) + ln(-3 - x) = ln(1 - 8x) 2. logsubscript8(x + 2) +logsubscript8(x + 4) = logsubscript8 8      Log On


   

Question 965040: How do I solve these problems?
1. ln(5 - x) + ln(-3 - x) = ln(1 - 8x)
2. logsubscript8(x + 2) +logsubscript8(x + 4) = logsubscript8 8
Found 2 solutions by josgarithmetic, MathTherapy:
Answer by josgarithmetic(39630) About Me  (Show Source):
You can put this solution on YOUR website!
ln%28%285-x%29%28-3-x%29%29=ln%281-8x%29, rule of logarithms
Exponentiating both sides with the base, e,
%285-x%29%28-1%29%28x%2B3%29=1-8x
%28x-5%29%28x%2B3%29=1-8x
x%5E2-2x-15=1-8x
x%5E2%2B6x-16=0
%28x-2%29%28x%2B8%29=0

Answer by MathTherapy(10556) About Me  (Show Source):
You can put this solution on YOUR website!

How do I solve these problems?
1. ln(5 - x) + ln(-3 - x) = ln(1 - 8x)
2. logsubscript8(x + 2) +logsubscript8(x + 4) = logsubscript8 8
1. highlight_green%28x+=+-+8%29 

2. highlight_green%28x+=+0%29