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|dw:1350287734547:dw|how to solve this equation step by step

by two methods

are you familiar with laplace transformation? or no?

no

by nonhomogunes
but how??????????/

well you have to solve the left side first

ok

assume homogeneous for the left sde
y'' + 4y'+4y = 0
do you know how to solve that?

yes

but the right gow????????????/

so what do you get?

solve the left side first

|dw:1350288124728:dw|the left get

how to solve right side

you're familiar with variation of parameter right?

how????????????????/

what do you mean how?

i can't solve it

help me

do you know variation of parameters or not??

no

do you know undetermined coefficients?

no

then what do you know?

nothing
can yiu help me and solve it step by step

you mean to tell me....you're teacher never taught you...and still expects you to answer this??

step 2 solve the particular solution

should we use determination of coefficients method/?