MHB Did I Apply Laplace Transforms Correctly?

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The discussion revolves around solving the differential equation $y'' - 5y' + 6y = 1$ using Laplace transforms. The user initially struggles with the transformation and algebraic manipulation, leading to the expression for Y. After some calculations, they express Y in terms of partial fractions. Ultimately, the user resolves their confusion and confirms their understanding of the application of Laplace transforms. The thread highlights the common challenges faced when applying this mathematical technique.
shamieh
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Solev by Laplace Transforms

$y'' - 5y' + 6y = 1$ $y(0) = 1$, $y'(0) = 0$So I am getting stuck. Here's my work

$s^2Y - 5sY + 6Y = \frac{1}{s} + s - 5$

multiplied through by $s$ to get

$s^3Y - 5s^2Y + 6sY = 1 + s^2 - 5s$

so:

$Y = \frac{1+s^2-5s}{s^3-5s^2+6s}$

so: $1+s^2-5s = \frac{A}{s} + \frac{B}{s-2} + \frac{C}{s-3}$

so: is it correct to say $1+s^2-5s = A(s-2)(s-3) + Bs(s-3) + Cs(s-2)$
 
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snvm i figured it out lol
 

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