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.
y(n+2)+2y(n+1)-8y(n)=0 , y(0)=3 , y(1)=6
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random
