(x-1)(x+1)(x²+1)-(x的4次方+1)=
问题描述:
(x-1)(x+1)(x²+1)-(x的4次方+1)=
答
原式=(x²-1)(x²+1)-(x的4次方+1)
=x的4次方-1-x的4次方-1
=-2