SOLUTION: ln(x + 4) + ln(x) = ln(x + 40)
not sure what to do
Algebra.Com
Question 1006422: ln(x + 4) + ln(x) = ln(x + 40)
not sure what to do
Answer by richard1234(7193) (Show Source): You can put this solution on YOUR website!
Use the fact that ln a + ln b = ln ab.
ln(x+4) + ln x = ln(x^2 + 4x)
So ln(x^2 + 4x) = ln(x + 40). You should be able to figure it from there.
RELATED QUESTIONS
Solve:
log base 4 (X) + Log base 8 (x) = 1
ln X/ln 4 + ln X/ln 8=1
2 ln X/2 ln 4 + ln... (answered by Fombitz)
ln 40 + 2 ln .5 + ln... (answered by edjones)
What is ln(4)-ln(x)=ln(3)+ln(x)(please supply steps to... (answered by stanbon)
ln(x-3)+ln(x)=ln(4) (answered by venugopalramana)
ln(x)+ln(x+4)=ln(5) (answered by scott8148)
ln x - ln(x-4) =ln... (answered by Fombitz)
Solve: ln x +ln (x+5)=ln(x^3 + 15x)-ln x
Not sure how to do this problem! please show... (answered by ankor@dixie-net.com)
x= ln 3 + ln 4 - ln... (answered by jim_thompson5910)
ln(x)-ln(4)=5 (answered by edjones,robertb)