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To solve the initial-value problem given by the differential equation
we start by rewriting the equation as follows:
This is a third-order linear homogeneous differential equation. We can find its characteristic equation by assuming a solution of the form
, which leads to:
Factoring out an
, we have:
This gives us one root
. For the quadratic part
, we can factor it as:
yielding a double root
. Therefore, the general solution for the differential equation is:
To find
,
, and
, we need to use the initial conditions:
,
, and
.
Calculating
:
Now, let’s calculate
:
Evaluating
:
Substituting
:
Next, we calculate
:
Evaluating
:
Substituting
and
:
Thus,
and
.
Finally, substituting the values of
,
, and
back into the general solution, we have:
Thus, the final solution to the initial-value problem is: