2个回答
展开全部
x^2 -2x +1 =3x
x^2 = 5x-1
x^4 = 25x^2 -10x +1
x^4 -3x^2 +1 =25x^2 -25x +5
=125x -25 -25x +5
=100x -20
=20(5x-1) =20x^2
原式= 1/20
x^2 = 5x-1
x^4 = 25x^2 -10x +1
x^4 -3x^2 +1 =25x^2 -25x +5
=125x -25 -25x +5
=100x -20
=20(5x-1) =20x^2
原式= 1/20
本回答由提问者推荐
已赞过
已踩过<
评论
收起
你对这个回答的评价是？
推荐律师服务：
若未解决您的问题，请您详细描述您的问题，通过百度律临进行免费专业咨询
