(adsbygoogle = window.adsbygoogle || []).push({}); Varation of Parameters fun!! diff EQ question, where do i go next?

This is my first attempt at doing Variation of parameters, didn't go to bad, things cancled out pretty well but now i'm almost done but i'm stuck!

The problem says: Find the solution of y''+15y'+56y = 54*e^(-5t), with y(0) = 8, and y'(0) = 2, y = ?

Here is my work:

http://img157.imageshack.us/img157/6798/s2ly.jpg [Broken]

http://img157.imageshack.us/img157/6389/s26za.jpg [Broken]

If you don't follow me or see an error right off the bat, please let me know! Thanks!

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# Homework Help: Varation of Parameters fun diff EQ question, where do i go next?

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