Equation simplification, can't get it right 1 x − 1 x + 2 − 2 x 2 − 1 should be simplified into x 2 + 3 x x 2 − 1 .However, when I try to do it (tried several times), I fail to get it done right: 1 x − 1 x + 2 − 2 x 2 − 1 = 1 ∗ x + 2 x − 1 − 2 x 2 − 1 = x ( x + 2 ) − 2 x 2 − 1 = x 2 + 2 x − 2 x 2 − 1 What am I doing wrong?Thanks a lot for the help

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Equation simplification, can&#039;t get it right      1                  x        −        1                    x        +        2              −      2                  x        2            −      1      should be simplified into                    x        2            +      3      x                      x        2            −      1          .However, when I try to do it (tried several times), I fail to get it done right:      1                  x        −        1                    x        +        2              −      2                  x        2            −      1        =  1  ∗            x      +      2              x      −      1        −      2                  x        2            −      1        =            x      (      x      +      2      )      −      2                      x        2            −      1        =                    x        2            +      2      x      −      2                      x        2            −      1      What am I doing wrong?Thanks a lot for the help

Liberty Gates · Accepted Answer

x            +            2                                x            −            1                          −                  2                                    x              2                        −            1                                              =                              x            +            2                                x            −            1                          −                  2                      (            x            −            1            )            (            x            +            1            )                                                            =                              (            x            +            2            )            (            x            +            1            )                                (            x            −            1            )            (            x            +            1            )                          −                  2                      (            x            −            1            )            (            x            +            1            )                                                            =                              (            x            +            2            )            (            x            +            1            )            −            2                                (            x            −            1            )            (            x            +            1            )                                                            =                                            x              2                        +            3            x                                              x              2                        −            1                          .

Equation simplification, can't get it right 1 x −<

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