Help us caption and translate this video on Amara.org: http://www.amara.org/en/v/B2xa/ Esercizi: http://www.khanacademy.org/exercises?exid=exponent_rules Traduzione in Italiano del video Exponent Rules Part 1 http://www.youtube.com/watch?v=kITJ6qH7jS0 http://www.khanacademy.org/video/exponent-rules-part-1?playlist=Pre-algebra Help us caption & translate this video! http://amara.org/v/B2xa/