Răspunsuri

2014-11-16T14:55:54+02:00
X12= ( 1+- radical din 9 ) / 2
( 1+- 3 ) / 2
x1 = 4/2 = 2
x2 = -2/2 = -1
x patrat - x - 2 = a(x-x1)(x-x2) = 1(x-2)(x+1) 
Eu vreau descompunere in factori, daca stii..