Poohbear258 Poohbear258 21-10-2019 Mathematics contestada Calculate each of the folowing products. a. ???? 3 −2 −1 4 ???? ????15 ???? b. ????3 3 3 3 ???? ???? 4 −4 ???? c. ????2 −4 5 −1 ???? ???? 3 −2 ????