因式分解x^4-6x^3+x^2+7

谢谢
2025-06-29 04:15:04
推荐回答(1个)
回答1:

x^4-6x^3十x^2十7
=x^4-2x^3十x^2-4x^3十4十3
=x^2(x-1)^2-4(x-1)(x^2十x十1)十3
=(x-1)(x^3-5x^2-4x-4)十3