x^4-2x^3+2x^2-2x+1=? Va rog ajutati-ma cu expresia asta.


^=la putere


Răspuns :

X^4-2x^3+2x^2-2x+1=([tex] x^{4} [/tex]-x³)-(x³-x²)+(x²-x)-(x-1)=(x³-x²+x-1)(x-1)=(x-1)²·(x²+1)