Jazzyperiodtt Jazzyperiodtt 07-11-2019 Mathematics contestada Sam wrote these four expressions. Sam believes that some of these expressions are equivalent. Which expressions are the ones that are equivalent? Explain how you know. 1 . n + n + n + n + 2 2 . n + n + n + 2 3 . 4n + 2 4 . 2n + 2n + 2n