Question

Am nevoie de de ex 8.VA ROG REPEDE !!!!!!DAU COROANA !!!!

Answer 1

Prima oara aducem toate bazele la cea mai mica valoare posibila.
Observam ca
$4=2^{2}$
$25=5^{2}$
$125=5^{3}$
Si mai stim ca
$(a^{b})^{c}=a^{b*c}$
Si faptul ca
$a^{b}:a^{c}=a^{b-c}$
in cazul particular in care b=c
$a^{b}:a^{b}=a^{b-b}=a^{0}=1$
Ultima e logica pentru ca imparti un numar la el insusi

Notez tot exercitiul cu S
$S=2^{100}-2^{98}-2^{99}+(5^{2})^{60}:(5^{3})^{40}+(2^{2})^{49}=2^{100}-2^{98}-2^{99}+5^{2*60}:5^{3*40}+2^{2*49}=2^{100}-2^{98}-2^{99}+5^{120}:5^{120}+2^{98}=2^{100}-2^{99}+1=2^{99}(2^{1}-1)+1=2^{99}+1$