问题
填空题
计算:(x+1)(x2+x+1)(x2-x+1)=______.
答案
(x+1)(x2+x+1)(x2-x+1),
=[(x+1)(x2-x+1)](x2+x+1),
=(x3+1)(x2+x+1),
=x5+x4+x3+x2+x+1.
计算:(x+1)(x2+x+1)(x2-x+1)=______.
(x+1)(x2+x+1)(x2-x+1),
=[(x+1)(x2-x+1)](x2+x+1),
=(x3+1)(x2+x+1),
=x5+x4+x3+x2+x+1.