问题
填空题
因式分解到(x2+1)(x3-x2+x-1)时,还未完毕,再分解下去,得______.
答案
(x2+1)(x3-x2+x-1)
=(x2+1)[x2(x-1)+(x-1)]
=(x2+1)2(x-1).
故答案为:(x2+1)2(x-1).
因式分解到(x2+1)(x3-x2+x-1)时,还未完毕,再分解下去,得______.
(x2+1)(x3-x2+x-1)
=(x2+1)[x2(x-1)+(x-1)]
=(x2+1)2(x-1).
故答案为:(x2+1)2(x-1).