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.
16(r+3)^2 = 3(r+1)(r+3)(r-1)(r+1)
16(r+3)^2 = 3(r+1)(r+3)(r-1)(r+1)
Natural Language
Math Input