Answer:
it would be by 23. that's what I think
i cant tell you that it is from a test
Rewrite equation so that it is homogeneous .

Solve characteristic equation:
The solutions to the homogeneous equation are:

Finally you need the constant term in "cy" to equal 'd' to satisfy the particular solution.
10•10•10=1,000=10^3
1,608 divided by 1,000 equals 1.608