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compara numerele a=2^28+2^28+2^29 si b=3²¹-2•3^20

Răspuns :

Renatemambouko
a=2^28+2^28+2^29=2^28×(1+1+2)=2^28×2^2=2^30 =(2^3)^10=8^10

b=3^21-2•3^20=3^20×(3-2)=3^20=(3^2)^10=9^10

9>8   deci   b>a

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