Hi this is the question: so i set: dy/dx + y = e^3x but im not sure where to go from here. I could also do dy + y dx = e^3x dx Can someone please explain what i should do? Thanks!
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Find an integrating factor $\displaystyle \displaystyle I = e^{\int 1 ~dx}$ Do you know why? What do you get?
right right. So i get e^x as the integrating factor. I think i should know what to do now
Multiply it through both sides of the equation, what do you get?
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