Multiplying by makes the first two terms a total derivative:
The resulting Sturm-Liouville form is
Equivalently, an integrating multiplier must satisfy , which reduces to and gives up to a constant. The coefficient is positive for and vanishes linearly at the left endpoint; the weight is positive throughout. The boundedness condition removes the logarithmic local branch, giving the no-log boundary condition at a linearly vanishing Sturm-Liouville endpoint.