Consider the following differential equation, To solve this differential equation, we must first use a Bernoulli substitution, namely u(t) = [y(t)]P, where p = Ou' (t) After undergoing the substitution from above, we will be left with which of the following first-order linear differential equations? O u' (t) + 4u(t) = -20 u' (t) Ou' (t) + Ou' (t) + 4u(t) t u(t) 4t 4u(t) t u(t) 4t = 20 5 4 v' (t) - ³(t) = 5(y(t)]5. y' t = -20 5 4 Number