Răspuns :
[tex]x^{4} +x^{2} +1=(x^{2} +x+1)(x^{2} -x+1)\\x^{4} +x^{2} +1= x^{4} -x^{3} +x^{2} +x^{3} -x^{2} +x+x^{2} -x+1\\x^{4} +x^{2} +1=x^{4} +x^{2} +1[/tex]
- Afirmatie adevarata!
[tex]x^{4} +x^{2} +1=(x^{2} +x+1)(x^{2} -x+1)\\x^{4} +x^{2} +1= x^{4} -x^{3} +x^{2} +x^{3} -x^{2} +x+x^{2} -x+1\\x^{4} +x^{2} +1=x^{4} +x^{2} +1[/tex]