Răspuns:
2^28(1+1+2)=2^28x4=2^100
b=3^20(3-2)=3^20 pls coroana
a = 2²⁸+2²⁸+2²⁹
a = 2•2²⁸+2²⁹
a = 2²⁹+2²⁹
a = 2²⁹
a = 2³⁰
b = 3²¹-2•3²⁰
b = 3²⁰•(3-2)
b = 3²⁰•1
b = 3²⁰
