
已知x²-5x-2004=0,求代数式(x-2)³-(x-1)²+1/(x-2)的值
展开全部
x²-5x-2004=0
x²-5x=2004
(x-2)³-(x-1)²+1/(x-2)
=(x³-6x²+12x-8-x²+2x-1+1)/(x-2)
=(x³-7x²+14x-8)/(x-2)
=x²-5x+4
=2004+4
=2008
x²-5x=2004
(x-2)³-(x-1)²+1/(x-2)
=(x³-6x²+12x-8-x²+2x-1+1)/(x-2)
=(x³-7x²+14x-8)/(x-2)
=x²-5x+4
=2004+4
=2008
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