Răspunsuri

2014-09-14T18:26:35+03:00
6^-10=1/6^10
32^-2=1/32²
81^-2=1/81²
exercitiul devine
81²/6^10x1/32²=(3^4)²/(2.3)^10x1/(2^5)2=3^8/2^10.3^10x1/2^10=1/(2^20.3²)=2^(-20).3^(-2)
^-puterea daca avem ^-2 inseamna ca este la puterea -2
.sau x-inmultire 
atunci exercitiul devine

(81².32²)/6^10=3^8.2^10/2^10.3^10=1/3^2=1/9
2014-09-14T18:32:11+03:00