# Please explain step a. Thanks. a. Setup the first order ODE necessary for variation of parameters....

###### Question:

a. Setup the first order ODE necessary for variation of parameters. b. Determine the real valued general solution of the second order ODE in simplest form. u" – 3u' + 2u = (1 +e-x) -1 All the integration can be done. There's a helpful rewrite of the integrand that makes this easy.

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