[tex] {2}^{3} \: \times {2}^{6} \: \div {2}^{8} [/tex]
Va rog repede


Răspuns :

Cand avem inmultire intre puteri cu aceeasi baza, adunam exponentii; cand avem impartire intre puteri cu aceeasi baza, scadem exponentii. => 2^(3+6) : 2^8 = 2^9 : 2^8 = 2^(9-8) = 2^1 = 2 "^" inseamna la puterea

[tex] {2}^{3} \times {2}^{6} : {2}^{8} = {2}^{3} \times {2}^{6} \times \frac{1}{ {2}^{8} } = 8 \times 64 \times \frac{1}{256} = \frac{512}{256} = 2 [/tex]