Existence uniqueness wronskian

[bl4ke360]

Homework Statement

y''-4y=12x

Homework Equations

I don't know

The Attempt at a Solution

http://imageshack.us/a/img7/944/20130207102820.jpg

I'm not sure if I did this right, I'm putting this here to make sure. Please respond within 3 hours if you can because it will be due.

 

[Karnage1993]

Homework Equations

I don't know

Really? I would have thought this "Theorem 3.1.1" would be relevant.

The rest of the answers seem fine.

 

[bl4ke360]

Really? I would have thought this "Theorem 3.1.1" would be relevant.

The rest of the answers seem fine.

Well theorem 3.1.1 is a paragraph long, and not really an equation either. I'm not sure about letting c=-3 though, the only reason I did is because wolfram had it as part of the answer but I don't see how.