Răspunsuri

2014-10-28T20:08:21+02:00
Nu gasesc egal la tastatura asa ca in loc de egal voi faosi acest semn≈
2⁷⁶+2⁷⁵+2⁷⁴≈2⁷⁴*(2²+2¹+2⁰)≈2⁷⁴*(4+2+1)≈2⁷⁴*7

3*7⁴⁰+2*7⁴¹+5*7³⁹≈7³⁹*(3*7¹+2*7²+5*7⁰)≈7³⁹*(3*7+2*14+5*1)≈7³⁹*(21+28+5)≈7³⁹*54≈7³⁹*7*8≈8*7⁴⁰
si steluta cen seamna
ori
Comentariul a fost şters
inmultire
de ce ai copiat ceea ce am scris eu Marria898
2014-10-28T20:12:01+02:00
2⁷⁶+2⁷⁵+2⁷⁴=2(1⁷⁶+1⁷⁵+1⁷⁴) = 1+1+1= 3 

3·7⁴⁰+2·7⁴¹+5·7³⁹= 7(3·1⁴⁰+2·1⁴¹+5·1³⁹)= 3·1+2·1+5·1=3+2+5=10