Răspunsuri

2014-11-17T20:14:14+02:00
A) 1+2x + x patrat
b)3^3 - 3 * 3 patrat * x + 3*3x - x^3 = 27-27x patrat +9x - x ^3 
c) [x(a+x)] patrat = x patrat ( a patrat + 2ax + x patrat )