[tex]D_{500}=\{1,2,4,5,10,20,25,50,100,125,250,500\}[/tex]
singurele numere de aici care pot fi scrise ca puteri al lui 2 sunt:
[tex] Prima \: \:valoare:\\ \\ 2⁰×5^{y}=500 \implies y\in Ø\\ \\ \\ \\ A \: \: doua \: \: valoare: \\ \\ 2¹×5^{y}=500 \implies y\in Ø \\ \\ \\ \\ A \: \:treia \: \:valoare: \\ \\ 2²×5^{y}=500 \implies \boxed{y=3}\\ \implies \boxed{x=3}[/tex]
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[tex]D_{500}=\{1,2,4,5,10,20,25,50,100,125,250,500\}[/tex]
singurele numere de aici care pot fi scrise ca puteri al lui 2 sunt:
[tex] Prima \: \:valoare:\\ \\ 2⁰×5^{y}=500 \implies y\in Ø\\ \\ \\ \\ A \: \: doua \: \: valoare: \\ \\ 2¹×5^{y}=500 \implies y\in Ø \\ \\ \\ \\ A \: \:treia \: \:valoare: \\ \\ 2²×5^{y}=500 \implies \boxed{y=3}\\ \implies \boxed{x=3}[/tex]