Răspunsuri

2014-05-21T17:43:01+03:00
2014-05-21T17:43:58+03:00
(x+4) la puterea a 2=2(x+4)=2*X+2*4=2x+8
(3x-1)la puterea a 2=2(3x-1)=2*3x-2*1=6x-2