45 + 4^2014 - 4^2012 / 12+ 4^2013= a.15 b.15/4 c.9 d.9/4 tolong di jawab ykak pakai cara

45 + 4²⁰¹⁴ - 4²⁰¹²      45 + (4² x 4²⁰¹²)  - 4²⁰¹² 
---------------------- = -------------------------------                                              
   12 + 4²⁰¹³                    12 + (4 x 4²⁰¹²)
            
                                45 + (4² - 1) x 4²⁰¹²
                            = ----------------------------
                                    12 + 4 x 4²⁰¹²
                       
                                45 + 15 x 4²⁰¹²
                            = --------------------
                                12 + 4 x 4²⁰¹²

                                15 ( 3 + 4²⁰¹² )
                            = --------------------
                                4 ( 3 + 4²⁰¹² )

                             = 15/4     ( B )