求助,帮忙解答下,要详细过程,谢谢
展开全部
(1998²-2004)(1998²+3993)×1999/(1995×1997×2000×2001)
解:设x=1998
(1998²-2004)(1998²+3993)×1999/(1995×1997×2000×2001)
=(x²-x-6)(x²+2x-3)×(x+1)/[(x-3)(x-1)(x+2)(x+3)]
=(x+2)(x-3)(x+3)(x-1)×(x+1)/[(x-3)(x-1)(x+2)(x+3)]
=x+1
=1998+1
=1999
解:设x=1998
(1998²-2004)(1998²+3993)×1999/(1995×1997×2000×2001)
=(x²-x-6)(x²+2x-3)×(x+1)/[(x-3)(x-1)(x+2)(x+3)]
=(x+2)(x-3)(x+3)(x-1)×(x+1)/[(x-3)(x-1)(x+2)(x+3)]
=x+1
=1998+1
=1999
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