Răspunsuri

2014-08-25T19:59:27+03:00
A)x²+3x-x-3=  x(x+3) -(x+3)= (x+3)(x-1)

b)x²-2x+x-2= x(x-2)+(x-2)= (x-2)(x+1)

c)x²+3x -2x -6= x(x+3) -2(x+3)= (x+3)(x-2)