1. The problem statement, all variables and given/known data Solve the Bernoulli equation, y'(x) - 4y(x) = 2e^(x) * sqrt(y(x)) 2. Relevant equations y' + P(x)y = Q(x)y^n - Bernoulli Eqn e^(∫P(x) dx) - Integrating Factor 3. The attempt at a solution y' - 4y = 2e^(x) * y^(1/2) Divided both sides by y^(1/2) y'/y^(1/2) - 4y/y^(1/2) = 2e^(x) y'/y^(1/2) - 4y^(1/2) = 2e^(x) My problem comes when changing variables. What am I supposed to choose for 'u' (the variable I'll be changing to)? Just y^(1/2)? My text and notes aren't very clear on this.