In this paper we study the multiplicity solution of the boundary value problemrnurn00rn+ a(t)urn0rn+ f(u) = 0; B1(u(0)) À€€ urn0rn(0) = 0; B2(u(b)) + urn0rn(b) = 0;rnwhere 0 < t < b < 1, B1 and B2 2 C1[0;1); a 2 C[0;1) with a 0 on [0;1) andrnf 2 C[0;1) C1(0;1) satisfy suitable conditions.rniii