Question

Resultado da divisão entre 4/(a-1) ao quadrado dividido por 4a/aQUADRADO -1

Answer 1

   4                           4                            4          X         a²   =        4a²    ==>>

(a-1)²        ===     (a-1)(a-1)       ===   a²-2a+1              4a            4a³-8a+4a

 ( 4 a ) ^-1                    a²                           

  a²                              4a

                                    

------------------------------------------------------------------------------------------

====>>>            4a²   === simplificando   por 4a   ----->>>  a     =         

                   4a³ -8a+4a                                                      a²-2a+1         

        

espero ter ajudado,quaquer duvida disponho