Răspunsuri

2014-09-30T18:19:55+03:00
(-2)^146:2^144-5^24:5^23=
2^2-5=-1
d) (2^10:2^6-5³.3³):(2^4+15³)=
(2^4-15³):(2^4+15³)=2^8-15^6
deoarece se utilizeaza formula (a-b)(a+b)=a²-b²