I need help as a soon as possible !

Ineed asap.i cant understand this question i need someone to me right away

Which is the completely factored from of xy^3-x^3y

An episode of a television show is 60 minutes long when it originally airs with commercials. on a dvd without commercials, the episode is only 417 minutes long. how many1-minute commercials did the episode include when it originally aired? write and solve an equation to justify your answer.