For the differential equation

$s^{\text{'}\text{'}}+b{s}^{\text{'}}+3s=0$

find all the values of $b$ that make the general solution overdamped, those that make it underdamped, and those that make it critically damped.

$($For each, give an interval or intervals for $b$ for which the equation is as indicated. Thus if the the equation is overdamped for all $b$ in the range bin$binq,$bin$2$ and enter $(2,3],[4,$infinity$)$; $ifitis$ overdamped only for $b=3,$ enter $3,3.$