How to get equation for overdamping

1. Apr 28, 2015

triple N

i had trouble how to get this equation.can someone please explain step by step?
i am sorry because i had no references at all.
x(t)=e^γt/2m (B1e^qt + B2e^qt) which q=√γ^2/4m^2 -ω^2

2. Apr 28, 2015

Staff: Mentor

It's unlikely anyone can do anything to help you unless you clarify your question. Asking "how do I get X equation" is not enough. Please clearly state exactly what you'd like to know and where you're having problems.

3. Apr 28, 2015

triple N

sorry if this disturb you.i had got the answer.thanks for helping me.