We report experimental results on resonant electronic Raman scattering in superconducting single crystals of Bi₂Sr₂CaCu₂O_8+x. The change of excitation wavelength results in a shift of the position for the superconductivity-induced 2Δ peak in A_1g and B_1g symmetries. In addition, in the red-light excitation a new Raman peak arises at approximately 130 K in the B_1g spectra. Various explanations of these effects are discussed.