This document presents research on magnetoresistance oscillations induced by bichromatic (two-frequency) microwave excitation in a GaAs/AlGaAs electron system. Results show the bichromatic response is not simply the average of the individual monochromatic responses and depends non-linearly on microwave power. At low magnetic fields, the response resembles the lower frequency, transitioning to resemble the higher frequency at high fields as both frequencies contribute. A model is proposed to explain the behavior. Future work includes further study of dependencies on microwave properties.