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Descompuneti polinomul in factori ireductibili: X^4 - X^2 + 2X +2

Răspuns :

x^2(x^2-1)+2(x+1)=
x^2(x-1)(x+1)+2(x+1)=
(x+1)(x^3-x^2+2)

[tex] x^{4}- x^{2} +2x+2= [/tex]

grupam

2x+2=2(x+1)

si [tex]x^{4}- x^{2}= x^{2} ( x^{2} -1)[/tex]

[tex] ( x^{2} -1)=(x+1)(x-1)[/tex]

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


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