2^2018 × 5^2017 × 10^ -2016 ------------------------------------------ = √300 - √48

dikerjakan pembilang dulu
2^2018 x 5^2017     2² . 2^2016 x 5 . 5^2016
----------------------- = ---------------------------------
     10^2016                        10^2016
                                  2² x 5 (10^2016)
                             = ---------------------------
                                       10^2016
                             = 2² x 5
                             = 20
soal
      20                    20
--------------- = -------------------
√300 - √48      10√3 - 4√3
                        20
                   = --------
                       6√3
bentul lain dari 20 / 6√3 adalah
 20     6√3    120√3
----- x ----- = ---------
6√3    6√3      36(3)
                 = 1,1√3

catatan
2² x 5² = 10²
2^2016 x 5^2016 = 10^2016