х : х

                             х : х

                            𝑥                                                                            · 𝑥

                                                                            𝑥⁸                                                             _𝑥−10                                                                                                          _𝑥7      

       𝑥     𝑥  𝑥

                         х  

                  х

                                                      х⁻¹²           х⁻¹                     х²                        

       х

        х

      х  · х                     х

  х                           х

                      х                                     х        х

)                         (х                          (х )                       (х )                           (х )

           (х                                 (х                                             (х

     Х                                                  Х               Х

   Х                                                                 Х                                      Х