Posted by **Shelby** on Tuesday, May 22, 2012 at 3:01pm.

What's the best way to solve functions? I can do basic ones, but have trouble with the harder ones.

I'm having trouble with the following:

Inputs x 1, 2, 3, ?

Outputs y 0, 2, 6, ?

I have tried everything and can't come up with the equation. Please help! Also, if you have any tips on how to solve that would be great. Thanks!

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