PDA

View Full Version : How do you do this?


trickticklertin
Mar 22, 2007, 08:56 PM
Ln(4x+1)=Ln(2x+5)

asterisk_man
Mar 23, 2007, 05:56 AM
use the identity:
e^{ln(x)}=x

so make both sides the exponent of e

e^{ln(4x+1)}=e^{ln(2x+5)}

then use the identity listed above

4x+1=2x+5

then I'm sure you can do it from there.