Find the general solution of the reducible second-order differential equation 13y³.
a) y = ∛((1/13)(C₁e (5x) + C₂e (-5x)))
b) y = ∛((1/13)(C₁e (5x) + C₂e (-5x))) + C₃x
c) y = ∛((1/13)(C₁e (-5x) + C₂e (5x)))
d) y = ∛((1/13)(C₁e (-5x) + C₂e (5x))) + C₃x