- #1

illidari

- 47

- 0

## Homework Statement

y''+y'=g(x)

fundamental set of solns. of the homog. DE is:

y1= 1 , y2= e^-x

If g(x) = x^2 , yp1 = ____

## Homework Equations

## The Attempt at a Solution

I actually am looking at a key to an old test my teacher gave as a review for a test. The key has the asnswer as x(Ax^2+Bx+C)

Is there any reason why the x was added? Shouldn't it only be (Ax^2+Bx+C). Much thanks if someone can clarify this for me.