in
the Theory of sturm-Liouville it is said that any linear operator
of second order L(y)=b_0(x)y''+b_1(x)y'+b_2(x)y can be write as an
autoadjunt operator of Sturm-Liouville. Determine the integrant
factor and write the operator in the form of Sturm-Liouville
operator.