lilMissMindset
help me get the general solution please.
y''  3y' 4y=30e^{4x}



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mahmit2012
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D23D4=0 > D=1 , 4
so ex & e4x are homo solutions.
Yp=Axe4x then find a

mahmit2012
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A

mahmit2012
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A=10
so y=c1ex+c2e4x+10xe4x

mahmit2012
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no c15=c !!!

surdawi
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looks like college math to me

lilMissMindset
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exactly

lilMissMindset
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exactly

surdawi
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what class is that

lilMissMindset
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diffeerential equation

surdawi
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took is 2 yrs ago but i will try to help you, where are you stuck?

lilMissMindset
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in determining the coefficient . i keep on getting zero.