Uh oh! Wolfram|Alpha doesn't run without JavaScript.
Please enable JavaScript. If you don't know how, you can find instructions
here
.
Once you've done that, refresh this page to start using Wolfram|Alpha.
log(1-x)+2log(x)-4log(x+1) = log(x-1)+2log(x)-4log(x+1)
log(1-x)+2log(x)-4log(x+1) = log(x-1)+2log(x)-4log(x+1)
Natural Language
Math Input
Extended Keyboard