zeki
find a general solution to
(D^4+4)y=0
please and promise i will guide u in a tour at elbaghl restaurant with chef president Ahmed Salmoun



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lollypopabby43
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is that d to the fourth power?

zeki
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yup :)

imron07
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So, you're working on fourth order diff eqn?

zeki
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yup :)

imron07
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factor D^4+4 first,

imron07
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Are you there @zeki ?

zeki
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yeah with u ... i am just so exhausted sorry

zeki
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then ?

imron07
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So, did u find the factors?

zeki
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No i feel like being against a nuclear reactor

imron07
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Okay, let me help:
D^4+4=D^4(2i)^2=(D^2+2i)(D^22i)

zeki
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ooooooooooooooooh ! finally i got it .. so many thanks :) that is what i missed

imron07
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No probs :)