Respostas

  • Usuário do Brainly
2014-05-28T15:48:37-03:00


a)   2x²-x-1                             b)  2x²-x-1                                    c)  -3x²+3x

      -3x²+3x                                -3x²+3x                                           4x²      -3

      4x²-3                                     4x²+7x+1                                              2x-6

-----------------                                     2x-6                                       ----------------------

    3x²+2x-4                           -------------------                                        x²+5x-9

                                                 3x²+11x-6