Each of these ODEs is linear and homogeneous with constant coefficients, so we only need to find the roots to their respective characteristic equations.
(a) The characteristic equation for
is
which arises from the ansatz 
.
The characteristic roots are 
and 
. Then the general solution is
where 
are arbitrary constants.
(b) The characteristic equation here is
with a root at 
of multiplicity 2. Then the general solution is
(c) The characteristic equation is
with roots at 
, where 
. Then the general solution is
Recall Euler's identity,
Then we can rewrite the solution as
or even more simply as
PAYING OFF DEBTS is the right thing for Robert to suggest to his friend to do first. Debts has many disadvantages and has negative effects on one's finances. Unpaid debt is very dynamic and increase in amount all the time. Thus, efforts should always be made to clear off one's debts as soon as possible.
A. They give children freedom but withinset limits.
Gucci Mane is the correct answer
