So the question is: Solve the initial value problem using the method of Laplace transforms:

y'' + 2y' +10y = g(t)

where g(t) = { 10, 0<=t<=10

{ 20, 10<t<20

{ 0, 20< t

so i got it to Y(s) =

http://i40.tinypic.com/66djwn.jpg

now after this if someone can help me take the inverse laplace transform of Y(s) so i can get y(t) ... btw its urgent my hwk is due today :(