Hi. I'm having some difficulty with a couple of questions, but mainly a problem differentiating an equation: dP kP (1-P/K)(1-m/P) -- = dT it says to solve it explicitly but I have no idea how to differentiate explicitly. If you could help me out, it'd be greatly appreciated. Also, if you tell me how to insert the the math operations so it looks normal, it'd be appreciated. Thanks again.