5.4¹⁵.9⁹-4.3²⁰.8⁹=5.2³⁰.3¹⁸-2².2²⁷.3²⁰

=2²⁹.3¹⁸.(2.5-3²)=2²⁹.3¹⁸

5.2^9.6¹⁹-7.2²⁹.27⁶=5.2⁹.2¹⁹.3¹⁹-7.2²⁹.3¹⁸

=2¹⁸.3¹⁸.(5.3-7.2)=2²⁸.3¹⁸

=2²⁹.3¹⁸:2²⁸:3¹⁸=2

Hop so be nhat la 4

Ta co: 2015=4+4+4+...+4+15 (500 so 4)

Vi 4 va 15 la hop so

Vay co tat ca 501 cach viet

Tick cho minh nhe

Tong so phan bang nhau giua a va b la: 9+11=20

a=4140:20.9=1863

b=4140-1863=2277

tick dung cho mink nhe