Răspunsuri

2014-03-30T12:36:41+03:00
X²-3x+2=x²-x-2x+2=x(x-1)-2(x-1)=(x-1)(x-2)
x²-2x+1=x²-x-x+1=x(x-1)-(x-1)=(x-1)(x-1)=(x-1)²
(x-1)(x-2)
-------------     =  x-2 supra x-1  ( pt ca se simplifica fractia prin x-1
(x-1)²