Posted by Deb on Wednesday, April 17, 2013 at 8:57am.
Write expression as one logarithm and simplify if appropriate.
log 3√x + log x^4  log x^3
4 log (x+3)  5 log (x^2+4) + 1/3 log y
I have these who problems but I don't know where to start. HELP Please.

college algebra  Reiny, Wednesday, April 17, 2013 at 9:12am
You are going to use 3 man rules of logs
1. log(A/B) = logA  logB
2. Log(AB) = logA + logB
3. log A^n = nlogA
log 3√x + log x^4  log x^3
= log 3 + log x^(1/2) + 4logx  3logx
= log3 + (1/2)logs + logx
= log3 + (3/2)logx
2.
4 log (x+3)  5 log (x^2+4) + 1/3 log y
= log (x+3)^4  log (x^2+4)^5 + log y^(1/3)
= log [ y^(1/3) (x+3)^4 /(x^2+4)^5 ]