- #1

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## Homework Statement

solve 4y''-4y'+y=16e

^{t/2}

## Homework Equations

v1= -∫ y

_{2}g/w

v2= ∫ y

_{1}g/w

## The Attempt at a Solution

http://imgur.com/gxXlfdH

the correct answer is 2t^2 e^(t/2) instead of what i have though, i am not sure what i am doing wrong?