Bernoulli ODE plot problem

Hello, a few days ago I have been researching but can not find a solution to my problem. My ODE contains variables (a, b and c), can not plot a graph with these symbolic variables. The ODE is m'(t) = - a*m(t)^b -c*m(t), a, b and c vary independently unique statements about them are a > 0, b > 1 and c >= 0, would like information on how to sketch the solution. Thanks in advance;