Question

X la a 3 a - 2x la a 2 a - x +2
Descompuneti expresia in produs de factori primi

Answer 1

Explicație pas cu pas:

x³-2x²-x+2=x²(x-2)-1(x-2)=(x-2)(x²-1)=

=(x-2)(x-1)(x+1)

Answer 2

 

$\displaystyle\bf\\x^3-2x^2-x+2=\\\\=(x^3-2x^2)-(x-2)=\\\\=x^2(x-2)-(x-2)=\\\\=(x-2)(x^2-1)=\\\\=\boxed{\bf(x-2)(x+1)(x-1)}$