How to solve the ODE ty' + 2y = 4t^2

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Homework Statement


Hi all, I'm trying to solve an ordinary differential equation. The problem is ty' + 2y = 4t^2


Homework Equations





The Attempt at a Solution



I got down to [tex]\int (t^{2})\frac{dy}{dt}[/tex] + [tex]\int 2ty[/tex] = [tex]\int 4t^{3}[/tex]

I am not sure about how to integrate the left side of the equation. The dy/dt make y make the problem confusing.

 
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just recognize
[itex]t^2 y' + 2 t y = (t^2 y)'[/itex]
and use the fundamental theorem to say
[itex]\int f'(t) dt = f + C[/itex].