The equation is
x'' - m2x - m2b = 0.
m and b are constants. x'' is the second derivative of x, with respect to time.
The Attempt at a Solution
When I did a differential equations course, I was taught to find the characteristic equation of the differential equation, then solve that. I tried it, but obviously it gave me an answer that was e to the power of something.
Which is not in the right format. How did the book do this? Can anyone get me started?