Question

What does a bar over (-) a y mean? The derivative?

Answer 1

i think it means it is a vector

Answer 2

We're doing Laplace. I dont think its a vector.

Answer 3

well, by looking at your problem it seems to me that it's just the original y equation and after you found you y equation, you did Inverse Laplace Transformation

Answer 4

the original equation is y'''-2y''+y'=2*e^(x) + 2x

Answer 5

what i mean by original equation is your first equation, general solution? i forgot the name

y -> first equation, "original equation", general solution?
y'
y''
y'''

Answer 6

does that mean that the you do not have to put the bar?

Answer 7

i don't see it making any different on the solution so, i don't think i should matter

Answer 8

Thank you for your help! :D